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

A. primary

B. secondary

C. postgraduate

D. undergraduate

Câu 1: Hugh is quite worried because he hasn’t ________for the end-of-term test.

A. examined

B. researched

C. studied

D. read

Câu 2: The United States has a ............. of around 250 million.

A. seperation

B. population

C. addition

D. introduction

Câu 3: I've ________ my shoes everywhere but I can't find them anywhere.

A. looked after

B. looked into

C. looked for

D. looked up

Câu 4: Pedestrians are supposed to walk on the.................

A. road

B. side

C. pavement

D. street

Câu 5: When I saw Minh, I stopped and smiled, but he _____ me and walked on.

A. refused

B. omitted

C. ignored

Câu 6: ________ it was raining heavily, they went to work.

A. Though

B. In spite of

C. Because of

D. Because