两道英语的单选题

题目

两道英语的单选题
1.-Do you know when Dr.white___for dinner this evening?
-No,but i think he _____when he is free.
A.will come;comes B.will come;will come C.comes ;comes D.comes;will come （为什么,讲原因）
2.-Look at the noisy kids!
-Haven't you heard the saying "when the cat is away,the mice____?
A.play B.played C.are playing D.will play
（为什么,讲原因）

答案

1.B 因为第一个空有this evening,所以cd的comes排除,要用一般将来时 而第二个空,也是这样的,要用一般将来时 2.D ...when the cat is away,the mice will play.是句俗语,猫儿不在,老鼠成精 的意思