Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27.

  School exams are, generally speaking, the first kind of tests we take. They find out (23) _____________ much knowledge we have gained. But do they really show how intelligent we are? After all, isn’t it a fact that some people who are very successful academically don’t have any common sense?

  Intelligence is the speed at which we can understand and react to new situations and it is usually tested by logic puzzles. (24) _____________ scientists are now preparing advanced computer technology

that will be able to ‘“read” our brains, for the present, tests are still the most popular ways of measuring intelligence.

  A person’s IQ is his intelligence (25) _____________ it is measured by a special test. The most common IQ tests are run by Mensa, an organization that was founded in England in 1946. By 1976 it had 1,300 members in Britain.

          Today there are 44,000 in Britain and 100,000 worldwide, (26) _____________ in the US. People taking the tests are judged in relation to an average score of 100, and those (27) _____________ score over 148 are entitled to join Mensa. This works out at 2% of the population.

Điền vào ô 23.

A. what

B. how

C. which

D. why

Mr. Hung ____________ in the army from 1970 to 1980.

A. has served

B. had been serving

C. had served

D. served

I can’t find my English book now. I hope it will _____________ up soon.

A. clear

B. look

C. come

D. turn

Tuần đầu em có (16 ) điểm tốt, tuần hai em có (7 ) điểm tốt. Cả hai tuần, em có số điểm tốt là:

A. 23

B. 13

C. 86

D. 22

Trong các phân số sau đây, tìm phân số không bằng phân số nào trong các phân số còn lại:

a ) − 7 21 ; − 8 24 ; − 6 − 12 ; 9 27 ; 10 − 30 ; 21 42 ;

b ) 5 10 ; − 3 6 ; − 12 − 36 ; 8 24 ; − 1 − 3 ; 10 − 20 ; 21 42 ;

Tìm a để 200+a chia hết cho 7, biết  1 ⩽ a ⩽ 9

hinh nhu la 37 

duey di olm

Hãy thiết lập các số có 3 chữ số khác nhau từ 4 chữ số 0, 4, 5, 9 thoả mãn điều kiện

a, Chia hết cho 2

b, Chia hết cho 4

c, Chia hết cho 2 và 5

Lan mua 7 hộp bút, mỗi hộp bút gồm 8 chiếc bút. Lan cho Hùng 10 chiếc bút và cho Ngọc 15 chiếc bút. Hỏi Lan còn lại bao nhiêu chiếc bút?