--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
Do the poor have enough houses ______?
The young man is ________ to carry the heavy box.
There was a football match last night. ______ people went to watch it.
Listen!Who is talking with my mother______the phone?
--_____is the post office ?--- Go straight and turn right.