Câu hỏi: Many languages used around the world they do not have a form of writing.

A. used

B. around

C. they

D. a form of writing

Câu 1: John announced that he could not longer tolerate the conditions of the contract under which he was working.

A. announced that

B. not longer tolerate

C. of

D. under which

Câu 2: I think she will be suitable for the work because she has been working like a teacher for a long time.

A. will be

B. for

C. has been working 

D. like

Câu 3: Bill is often late for class, which makes his teachers angrily.

A. Bill is often

B. for

C. which

D. angrily

Câu 4: By measuring the color of a star, astronomers can tell how hot is it.

A. measuring

B. the

C. how

D. is it

Câu 5: When a lion gets hungry, its manner changes and it becomes threatened.

A. when

B. its manner 

C. and

D. threatened

Câu 6: It is believed that in the near future robots will be used to doing things such as cooking.

A. it is believed

B. in the near future

C. be used to cooking

D. such as