Look! She is laughing. She...........something funny or happy.

A. must have B. must have had C. could have had D. should have had

Hiking the trail to the peak .........be dangerous if you are not well prepared for dramatic weather changes.

A. might B. should C. had better D. mustn't

Hoa ’s new school is....... than her old school.

A. big

B. bigger

C.the biggest.

D.the bigger

She..........a lot after her husband's accident. That was why her eyes were so red and swollen

A. must be crying  B. can have been cried  C. will have cried   D. must have cried

You.....the air pressure in your tires if you do not want to get a flat tire on your trip.

A. should be checked  B. do not have to check  C. mustn't check   D. ought to check

Look! They_________baseball.

A.to play

B.play

C. are playing

D.plays

Does Nam play soccer_____recess ?

A.in

B.on

C. at

D. with

Lan’s  grades are poor. She  ____study  harder

A. can

B. should

C. maybe

D. will

Nga is____a play for the school anniversary celebration.

A.making

B.doing

C. rehearsing

D. practicing

In _____, We do some experiments.

A. Math

B. History

C. Chemistry

D. English