Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Alice and Charles did not decide to move to a bigger house until after the birth of their second child.

A. It was not until Alice and Charles had their second child did they decide to move to a bigger house. 

B. Not until Alice and Charles had their second child, they decided to move to a bigger house. 

C. Only when Alice and Charles had their second child did they decide to move to a bigger house. 

D. Only when Alice and Charles had their second child, they decided to move to a bigger house.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

I have never played golf before.

A. It is the first time 1 had played golf.

B. This is the first time I have ever played golf.

C. It is the last time I played golf.

D. I used to play golf but I gave it up already.

Các electron của nguyên tử nguyên tố X được phân bố trên 3 lớp, lớp thứ ba có 6 electron. Số đơn vị điện tích hạt nhân của nguyên tử X là:

A. 6

B. 8

C. 14

D. 16

Hãy chọn đáp số đúng.

Thí nghiệm nào sau đây xẩy ra phản ứng oxi hóa khử?

A. Cho Cu(OH)₂ vào dung glixerol

B. Cho glucozo vào dung dịch brom

C. Cho anilin vào dung dịch HCl

D. Cho Cu(OH)₂ vào dung dịch anbumin

Chọn phát biểu đúng:

A. H₂ oxi hóa được glucozo thu được sobitol

B. Chất béo nhẹ hơn nước và không tan trong nước

C. Saccarozo, glucozo đều phản ứng với dung dịch AgNO₃/NH₃

D. Amino axit là những hợp chất đa chức trong phân tử vừa chứa nhóm COOH và nhóm NH₂

Mark the letter Ay B,c or D on your answer sheet to indicate the correct answer in each of the following questions.

Although she was               , she agreed to give me a hand with the clean-up.

A. tiredness

B.tired

C. tiring

D. tiresome