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

A. seperation

B. population

C. addition

D. introduction

Câu 1: My husband and I both go out to work so we share the _______.

A. happiness

B. household chores

C. responsibility

D. employment

Câu 2: We read newspapers and magazines which have been produced on computers.

A. born

B. shaped

C. begun

D. manufactured

Câu 3: You have to be highly ________ to do well in these subjects.

A. competitive

B. competitor

C. competition

D. competed

Câu 4: They _____ sacrifices so that their only child could have a good education.

A. made

B. did

C. provided

D. lent

Câu 5: If you wish to learn a new language, you must _____ classes.

A. follow

B. present

C. attend

D. assist

Câu 6: At the _______ level, you can join three-year or four-year colleges.

A. primary

B. secondary

C. postgraduate

D. undergraduate