题目内容：

词形转换用所给单词的适当形式填空。每空仅限一词。

1. His name is James but he calls    (him) Jim.

2.Thank you for your advice; it's been very    (help).

3. Have a nice time, dear, and drive    (care).

4. Times Square has more than 30 million    (visit) every year

5.The tower was built in the    (twenty) century.