词义替换
—Why not go out and walk a pet dog?.
—Good idea.
| A．take a pet dog for a walk | B．go out to play with a dog |
| C．ride a dog for a walk | D．play with a dog |
--Mum, I’m leaving for Beijing tomorrow.
--OK! You’d better ring me up you get there.
A. until B. as soon as C. because
A Wechat（微信）is an invention ________can help people talk to friends，share photos，ideas and feelings freely .
A. which B. who C. /
—Is that Kate’s car?
—It ______be hers. She has just gone for a meeting.
A. can’t B. may C. mustn’t
—______will you stay here for the meeting?
—For two days.
A. How long B. How often C. How much
—What are the two _________ doing?
—They are taking care of several ____________.
A. German; sheeps
B. Germen; sheep
C. Germans; sheep