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）