Câu hỏi: The United States has a ............. of around 250 million.

A. seperation

B. population

C. addition

D. introduction

Câu 1: Mr. Bao said, “I am so...............of having been a Dien Bien Phu soldier.”

A. interested

B. excited

C. proud

D. keen

Câu 2: You have to be highly ________ to do well in these subjects.

A. competitive

B. competitor

C. competition

D. competed

Câu 3: Any pupil caught ______ was made to stand at the front of the class.

A. Misbehave

B. misbehaved

C. misbehaviour

D. misbehaving

Câu 4: If people stop using ________ for fishing, a lot of sea creatures will be preserved.

A. pesticides

B. dynamite

C. garbage

D. resources

Câu 5: We were so late that  we _____ had time to catch the train.

A. nearly

B. almost

C. hardly

D. simply

Câu 6: If you wish to learn a new language, you must _____ classes.

A. follow

B. present

C. attend

D. assist