I think students shouldn't ________ to do too much homework. We'd better ________ them enough time to do sports and have other experiences.

1. A.
   be allowed；leave
2. B.
   allow ；leave
3. C.
   be allowed；to leave
4. D.
   allow；leaving

I think students shouldn’t  __________to do too much homework．We’d better __________ them enough time to do sports and have other experiences．

A．be allowed；leave                                       B．allow；leave

C．be allowed；to leave                                  D．allow；leaving

---I think students shouldn’t　　　　 to do too much homework.

---I agree. We’d better 　them enough time to do sports and have other experiences.

A. be allowed; leave　　　 B. allow; leave　 C. be allowed; to leave　　 D. allow; leaving