---At present, one of the best ways to study is working in groups. ---More chances _______ to students to learn from each other. 
#44491
A
offer
B
are offered
C
have offered
D
are offering
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— John, you       go out to play until your homework       .  —OK, Mum.
#44766
A
must; finishes
B
can’t; is finished
C
can’t; has finished
D
needn’t; finishes
An official _____ by some reporters on food problems in Shanghai yesterday.
#44962
A
is interviewing
B
is interviewed
C
was interviewing
D
was interviewed