用所给动词的正确形式填空。

(1) — Why isn't Jim here? 　　　　　

     — He's busy. He __________ (take) care of his aunt's baby at home now. 　　

(2) — What's Mr. Clarke going to do tomorrow? 　　　　　

     — He'll go fishing if it __________ (not rain). 　　

(3) Linda __________ (make) a lot of friends since she came here last autumn. 　　

(4) — Did Jack finish__________ (clean) the house this morning? 　　　　　

     — Yes, he did. 　　

(5) — Have you heard of the Great Wall, Mr. Read? 　　　　　

     — Yes, I have. It's a place of great interest in China. 　　　　　　　

     It _________ (build) thousands of years ago.