1. Stefany _______ hard-working and serious.

     A. has                                B. is                                    C. are                                 D. have

2. Camila _______ some exercise in the morning.

     A. usually do                     B. usually does                 C. do usually                     D. does usually

3. We often _______ lunch at school at about 11 o’clock.

     A. are eating                     B. eats                               C. is eating                        D. eat

4. Diligent students _______ this subject.

     A. doesn’t occasionally fail                                        B. don’t occasionally fail

     C. don’t fail occasionally                                             D. occasionally doesn’t fail

5. Be quiet! My younger sister _______ upstairs.

     A. is sleeping                     B. sleeps                            C. sleep                              D. are sleeping

6. Eric always gets good marks. He _______ very hard.

     A. plays                             B. has                                C. studies                          D. does

7. _______ everyone _______ note of the lesson right now?

     A. Is ... taking                     B. Does ... take                   C. Do ... take                      D. Are ... taking

8. _______ in any of our group discussions.

     A. Never she participates                                            B. She doesn’t never participates

     C. She participates never                                            D. She never participates

9. This Sunday morning, Vivian and I _______ to the safari park.

     A. go                                  B. goes                              C. are going                       D. is going

10. She _______ yoga _______.

     A. practises - regularly fairly                                     B. is practising - fairly regularly

     C. practises - fairly regularly                                     D. practise - regularly fairly

1b 

2c

3a  

4a 

5b

6c

7d

8a

9c 

10b

1C

2A

3C

4A

3+1400:(70x80)= 5,5cm

Câu 1 : Thuyền buồm

Câu 2 : Nón lá

Câu 3 : Cái bóng

Câu 4 : Bàn tay

Câu 5 : Hạt mưa

Từ trang 1 đến trang 9 dùng 9 chữ số

Từ trang 10 đến trang 99 dùng:

(99 - 10 + 1) × 2 = 180 (chữ số)

Số chữ số còn lại:

1242 - 180 - 9 = 1053 (chữ số)

Số chữ số có ba chữ số của quyển sách:

1053 : 3 = 351 (trang)

Số trang của quyển sách:

351 + 90 + 9 = 450 (trang)

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