You _ to the meeting this afternoon if you have something important to do.
-Look! That man looks like Mr Brown. -It _____ be him, for he _____ America. A. can't;has gone to B. may not;has gone C. can't;has been to
We study five days_____ week and on Sundays we often play ____football. A. a;the B. 不填;a C. a;不填
--- Will you please _____ your radio a little? I can hardly go to sleep. --- Oh, sorry. A. turn off B. turn on C. turn down
I _____ the mouse for 18 yuan in the supermarket. A. paid B. cost C. Spent
We usually _____ hello to each other A. tell B. say C. speak