Do you have any idea ______ is actually going on in the classroom??

A.that

B.what

C.as

D.which?

No progress was made in the trade talk as neither side would accept the conditions of _____.?

A.others

B.the other?

C.either

D.another?

The number of people invited to the conference _____ 150,but a number of them ______ absent for different reasons.?

A.were;was?

B.were;were?

C.was;were?

D.was;was?

_____ straight on and you’ll see a church.You won’t miss it.

A.Go?

B.Going?

C.If you go?

D.When going?

John was very unhappy for ______ to the birthday party.

A.having not been invited?

B.not having invited?

C.having not invited?

D.not having been invited?

—Has Sam finished his homework??

—I have no idea. He _____ it this morning.?

A.did?

B.has done?

C.was doing?

D.had done?

 His father ＿＿＿＿＿ that older than he really is.

A.grows     B.appears     C.turns     D.becomes

 Our classroom is very clean. Do you know who＿＿＿cleaned it?

A.was it that     B.it was that   C.was it who     D.he was

We decided to buy a second-hand computer instead a new one.

If you really want yourself to be in good health, you must＿＿＿always＿＿＿so much.

A. not； be smoking     B. not； have smoked

C. not； to smoke     D. be not； smoking