Hardly（）the door when he rushed in to the office out of breath.

A.when、knocking

B.when、knock

C.that、knockingD. that、knock

She _____ go to bed when someone knocked at the door .

A.was about to

B.is about to

C.was to

D.is to

A．If possible

B．Be sure of

C．Be sure in

D．Be sure to

When he opened the door, he used too much force and () the key.

A、trailed

B、varied

C、twisted

D、wicked

A. was smiling

B. smiled

C. is smiling

D. has smiled

When you vacate the room, you should ______ the door key to me.

A．hand in

B．hand out

C．hand down

D．hand over