[ ] 10.He insisted that he ---the camel.

[ ] 10.He insisted that he ___the camel.
should never see B.had never seen C.has never seen D.would never
see
[ ] 11.The teacher demanded that the exam _____before eleven.
A.must finish B.would be finished C.be finished D.must be
finished
[ ] 12.She made the demand that she ___at once.
A.leave B.leaves C.left D.to be left
最好可以翻译出来.