A Wechat（微信）is an invention ________can help people talk to friends，share photos，ideas and feelings freely .
A、which B、who C、/
—Could you tell me_________？
—I lost my MP3 player .
A、what’s the matter with you
B、what the matter is with you
C、what was the matter with you
When people want to relax themselves，they prefer________TV or listen to music rather than __________newspapers .
A、watching，read
B、to watch，read
C、to watch，reading
—Mr. Lee ________to a student when I entered the classroom this morning .
—He is very patient_________ he is young .
A、is talking but
B、talked，though
C、was talking，though
—When should I hand in my paper？
—Your paper must _______as soon as the bell________ .
A. hand in，rings
B. be handed in，will ring
C. be handed in，rings