Trong bảo vệ môi trường thì hoạt động nào có tầm quan trọng đặc biệt ?
A.Quản lí chất thải
B.Bảo vệ môi trường đô thị, khu dân cư
C.Bảo vệ môi trường biển
D.Bảo vệ rừng

Số học sinh của lớp 7A là bội chung nhỏ nhất của 3, 6 và 8. Nếu xếp các học sinh lớp 7A thành 5 hàng thì dư bao nhiêu bạn ?
A.Dư ba bạn.
B.Dư hai bạn.
C.Dư 4 bạn.
D.Dư 5 bạn.

Mark the letter A, B, C or D to indicate the sentence that best combines each pair of sentences in the following questions.
The Prime Minister set up a committee of financial experts. They were to help him discuss and formulate new policies.
A.(2) A committee consisting of financial experts was set up by the Prime Minister to help him discuss and formulate new policies.
B.(4) A committee consisting of financial experts who were helped by the Prime Minister discussed and formulated new policies.
C.(1) The Prime Minister, who is a financial expert, set up a committee to discuss and formulate new policies.
D.(3) The Prime Minister, who was helped by financial experts, set up a committee to discuss and formulate new policies.

Bội chung nhỏ nhất của ba số 5;8;10 là
A.50
B.30
C.40
D.60

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.
Marie Curie was a famous mathematician and physicist. She also won the Nobel Prize for chemistry.
A.Winning the Nobel Prize for chemistry, Marie Curie became a famous mathematician and physicist.
B.Marie Curie, a famous mathematician and physicist, also won the Nobel Prize for chemistry.
C.Marie Curie won the the Nobel Prize for chemistry so she was a famous mathematician and physicist.
D.Marie Curie was a famous mathematician rather than a physicist although she won the Nobel Prize for chemistry.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to the following question.
He likes the dress. Huong is wearing it.
A.He likes the dress which Huong is wearing it.
B.He likes the dress Huong is wearing.
C.He likes the dress who Huong is wearing.
D.He likes the dress Huong is wearing it.

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 question.
I picked up my book. I found that the cover had been torn.
A.Picked up, the book was torn.
B.When picking up my book, the cover had been torn.
C.On picking up my book, I saw that the cover had been torn.
D.The cover had been torn when my book picked up.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to the following question.
What was the name of the man? You met and talked to him this morning.
A.What was the name of the man you met and talked to whom this morning?
B.What was the name of the man you met and talked to this morning?
C.What was the name of the man whose you met and talked to this morning?
D.What was the name of the man who you met and talked to him this morning?

Cho $ A=\left\{ x\in BC(4;5)|0 < x < 100 \right\} $ . Tập hợp A có bao nhiêu phần tử?
A.3 phần tử.
B.4 phần tử.
C.5 phần tử.
D.6 phần tử.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to the following question.
Most of the classmates couldn't come. He invited them to the birthday party.
A.Most of the classmates that he invited them to the birthday party couldn't come.
B.Most of the classmates he was invited to the birthday party couldn't come.
C.Most of the classmates he invited to the birthday party couldn't come.
D.Most of the classmates which he invited to the birthday party couldn't come.