6. The doctor _______ me not to stay up too late at night.

A.    forced         B. suggested          C. insisted             D. advised

7. People will laugh ___ you if you wear that silly tie.

A.    for              B. at                C. in                  D. on

8. I am pleased _____ all of you have studied better.

A.    if               B. that               C. when            D. how

9. This is the first time I _______ the experiment on this plant.

A.    Have done      B. did              C. do               D. would do

10. In the past, white or violet Ao dai ____ by Vietnamese female students as their uniform.