The ________ question is much more difficult than this one.

A. sixth

B. six

C. sixteen

D. sixty

?How does she go to work？

?She ________ the train.

A. take

B. takes

C. by

D. on

Your classroom is so dirty. Everyone should keep it ________.

A. dry

B. open

C. clean

D. quiet

Yon can speak English. I can _______ speak English.

A. either

B. too

C. also

D. neither

He is a busy man and he is busy ________ an English story.

A. to write

B. write

C. writing

D. writes

Sam enjoys __________ stamps. And now he has 226 of them.

A. to collect

B. collected

C. collects

D. collecting

It's very cold outside. Don't play ________ snow over there.

A. the

B. /

C. with

D. a

________ book on the desk is ________ useful one.

A. The; an

B. A; a

C. The; a

D. The; /

Mary likes music, but she doesn't like ________ music of that film.

A. the

B. a

C. some

D. /

?Where is mom now？

?I'm not sure. She ________ be in the kitchen.

A. shall

B. may

C. need

D. must