完型填空
1.The blind ( ) goes to the school too.
A.people B.person C.man D.child
2.The dog is trained to the watch the cars,and tell ( ) the time is for the dog and the master to .cross
A.what B.when C.which D.where
答案是什么,为什么?
参考答案:1.我认为B、C、D都可以
2.选A。句子意思是：狗被训练观察来往汽车并告诉主人何时过马路。what the time is是the time is what的倒装，而不是疑问句，不能用when代替.