I didn’t know he came back I met him in the street.
A. since B. when C. until D. after
I like playing violin, but Tom likes playing basketball.
A. the … / B. the … the C. / … the D. / … /
What ______ at seven yesterday morning?
A. is she doing B. was she doing
C. did she do D. does she do
I was watching TV the lights went off.
A. when B. while C. as D. for
Bring a map of China because you _______ want to travel around.
A. may B. must C. need D. can
--- do I need to feed the pet dog? ---Twice a day.
A. How long B. How much C. How soon D. How often