“ 千克” 的缩写形式是________.
He used ___ in the morning , but now he gets used _____ after supper.A to study, studyingB. to study, to studyingC. to studying , to study
The naughty boy stopped ____ when the teacher went away.A. play B. to play C. playing
I don’t think it is a good idea, ________ ?A. isn’t it B. is it C. do we
____ Mary ____ Alice has joined the music club because they have no time . It’s a pity.A. Neither, nor B. Either,or C. Both, and
Mary with her friends ___ going to Beihai Park this weekend.A. are B. will C. Is