Câu hỏi: He told me ___________ my best to study English.

A. try

B. trying

C. to try

D. tried

Câu 1: Gold _______in California in the 19th century.

A. was discovered

B. has been discovered

C. was discover

D. they discovered

Câu 2: At the end of the story, the prince and princess fall _________ love with each other.

A. in

B. on

C. for

D. at

Câu 3: It’s necessary __________ your listening and writing skills.

A. to improve

B. improve

C. improving

D. improved

Câu 4: He came up with the solution __________ every problem.

A. in

B. at

C. for

D. to

Câu 5: In the USA students ________ school uniform.

A. wore

B. wearing

C. don't wear

D. not wear

Câu 6: My mother told me __________ hard.

A. study

B. studying

C. to study

D. studied