---- ______ do you exercise?
---- Twice a week.
A. How much B. How long C. How often
Why are you so happy?
----______my mother buys a new bike for me.
A. So B. Because C. But
Maria is in the _____ office.
A .teacher B .teachers’ C. teachers
-----What time do you usually get up _____ weekdays?
-----______about six o’clock.
A .at; At B .on; To C .on; At
Work ______ first!
A. must comes B. must come C .must to come
----Oh, your new dress looks very nice!
----_______.
A. Thanks B. No, thanks C. Yes, it is