Trees can stop the wind ______the earth away.
A. from blowing B. to blow C. blew
______Mum was ill yesterday, _______ she still went on working.
A. Though; / B. Though; but C. Because; /
I am glad to hear that you_________________ in English..
A.have made a rapid progress
B. have make rapid progress
C. have made rapid progress
Students ought _________ the truth.
A. to tell B. tell C. telling
—Could you tell me______ at this time yesterday?
—Oh, I was watching TV.
A.when you were going
B.where you were going
C.what you were doing
—Do you often visit your grandpa in your free time?
—No,he___________for a few years.
A.died B.has died C.has been dead
