1. Those (A) joining showbiz (B) seldom let other people, particularly their fans, (C) to see their real feeling, so they always try (D) to hide it inside.
2. Thao planned (A) visiting Tokyo (B) last summer vacation (C) as she wanted to meet her favorite (D) actress.
3. (A) My mother (B) is washing (C) the blanket when it (D) is sunny.
4. John would like (A) to take some (B) photos of the Statue of Liberty, (C) yet he decided (D) to travel to New York.
5. Volunteers (A) can teach primary (B) subjects, (C) organizing sport and art activities (D) for the children.
6. (A) Doing crossword puzzles (B) surely has beneficial (C) effects to our brain’s (D) memory.
7. (A) Natural resources (B) provide the raw (C) materials that (D) need to produce finished goods.
8. (A) Fresh vegetables and fruits (B) provide us by vitamins, fiber (C) and vital (D) minerals.
IX. Find and correct ONE mistake in each of the following sentences.
1. Those (A) joining showbiz (B) seldom let other people, particularly their fans, (C) to see their real feeling, so they always try (D) to hide it inside.
2. Thao planned (A) visiting Tokyo (B) last summer vacation (C) as she wanted to meet her favorite (D) actress.
3. (A) My mother (B) is washing (C) the blanket when it (D) is sunny.
4. John would like (A) to take some (B) photos of the Statue of Liberty, (C) yet he decided (D) to travel to New York.
5. Volunteers (A) can teach primary (B) subjects, (C) organizing sport and art activities (D) for the children.
6. (A) Doing crossword puzzles (B) surely has beneficial (C) effects to our brain’s (D) memory.
7. (A) Natural resources (B) provide the raw (C) materials that (D) need to produce finished goods.
8. (A) Fresh vegetables and fruits (B) provide us by vitamins, fiber (C) and vital (D) minerals.
9. Even when parents (A) no longer live together, they (B) each continue to take (C) responsible for their (D) children.
10. We (A) believe that the children (B) will feel (C) safely in (D) their family.
11. The plasma screen (A) makes possible (B) for teachers (C) to illustrate the lessons (D) by using colorful pictures and movies.
12. Nowadays, grandparents can live (A) happy (B) with (C) their children (D) and grandchildren.
13. Children whose fathers (A) share housework with their mothers (B) are likely to (C) become responsible and (D) independent person.
14. Women (A) whose husbands do (B) not contribute to the household chores are more (C) vulnerable to illness and tend (D) to thinking more about divorce.
15. (A) The speaker introduced (B) himself, (C) said several silly words and (D) finishing with farewell.
30. Volunteer organizations are generally small – staffed, so they need to ……………… lots of volunteers for a huge event.
A. employ B. recruit C. research D. catch
31. This is the second time I ……………… that song.
A. am hearing B. have heard C. hear D. heard
32. Anna thinks she ought to go to the university, ……………… she wants to get qualifications for her dream job.
A. and B. yet C. for D. so
33. Peter wonders he should stay home and watch TV, ……………… he should go out and have dinner with his friends.
A. so B. or C. and D. nor
34. Many “American Idol” contestants want on to become huge stars, ……………… the popularity of “American Idol” began to decrease.
A. and B. but C. so D. or
35. It was essential for him to be financially ……………… of his parents, so he decided to find a part – time job.
A. dependent B. independent C. dependable D. undependable
36. They were among the first companies to exploit the ……………… of the Internet.
A. potential B. prospect C. possibility D. ability
37. It is definitely true that nature has inspired ……………… inventions and technologies.
A. numbers B. numeral C. numerical D. numerous
38. Smartphones are used not only for communication but also for information and ………………
A. entertain B. entertainer C. entertaining D. entertainment
39. Garvin is ……………… a new computer application to see whether it works.
A. looking after B. putting on C. trying out D. turning up
40. Scientists have invented artificially intelligent computer systems ……………… of answering questions posed in natural language.
A. able B. aware C. capable D. fond
Câu 50: Khẳng định nào sau đây sai?
A. Flo là phi kim mạnh nhất
B. Có thể so sánh tính kim loại giữa 2 nguyên tố K và Mg.
C. Kim loại vẫn có khả năng nhận electron để trở thành anion.
D. Các ion: O2+, F-, Na+ có cùng số electron.
Câu 51: Hãy chọn mệnh đề mô tả liên kết cộng hóa trị đúng nhất
A. Là lực hút tĩnh điện giữa các cặp e chung.
B. Là liên kết được hình thành do sự cho nhận electron giữa các ion.
C. Là liên kết được hình thành do lực hấp dẫn giữa các ion.
D. Là liên kết được hình thành giữa hai nguyên tử bằng một hay nhiều cặp electron chung. Câu 52: Liên kết cộng hóa trị trong phân tử HCl có đặc điểm
A. Có hai cặp electron chung, là liên kết đôi, không phân cực.
B. Có một cặp electron chung, là liên kết đơn không phân cực.
C. Có một cặp electron chung, là liên kết ba, có phân cực.
D. Có một cặp electron chung, là liên kết đơn, phân cực.
Câu 55: Các nguyên tố X, Y, Z có cấu hình electron nguyên tử lần lượt là: 1s22s22p5; 1s22s22p63s23p63d104s24p5; 1s22s22p63s23p5. Dãy gồm các nguyên tố xếp theo thứ tự tăng dần tính phi kim là
A. X, Y, Z. B. Y, Z, X. C. X, Z, Y. D. Y, Z, X.
Câu 56: Nguyên tố R có cấu hình electron nguyên tử: 1s22s22p3, công thức oxit cao nhất và hợp chất khí với hiđro và lần lượt là
A. R2O5, RH5. B. R2O3, RH.
C. R2O7, RH. D. R2O5, RH3.