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

A. was discovered

B. has been discovered

C. was discover

D. they discovered

Câu 1: At the end of the story, the prince and princess fall _________ love with each other.

A. in

B. on

C. for

D. at

Câu 2: In the Us, the first stage of compulsory education_______as elementary education.

A. to be generally known

B. is generally known

C. generally known

D. is generally knowing

Câu 3: In the USA students ________ school uniform.

A. wore

B. wearing

C. don't wear

D. not wear

Câu 4: When we were on holiday, we used ________ to the beach every day.

A. go

B. to go

C. going

D. gone

Câu 5: My mother told me __________ hard.

A. study

B. studying

C. to study

D. studied

Câu 6: It’s necessary __________ your listening and writing skills.

A. to improve

B. improve

C. improving

D. improved