LiPing stood silently with her arms ________.

The frighten boy lay in bed quietly, with his eyes____ on the wall, saying nothing.

--_______, we are going to play tennis on Saturday. --But we have to first finish our task within the time ________.

Mr Black has two sons, one of ________working as a doctor.

All attention     on the beautiful girl, the boy didn’t notice the teacher enter the classroom.