—Is Mr. Green in the office?—No, he ________ be in the office. Look, the light in the office is off.
含有相同音素的一组字母是______。
I often ________ on weekends. A. go to movie B. go the movies C. go to the movies
My mother isn’t in, I must ___ my sister at home. A. look at B. look after C. look up
I love junk food, too, ____ I try to ____ only once a week. A. but, eat B. but, eat them C.but, eat it
I do homework every day when I come ____ home ____ school. A. to, from B. at, for C. /, from