题目内容：

用所给词的正确形式填空。

1.There is a great chance for you _________ (meet) the famous athlete .

2.It’s easy for you __________ (finish) the work on computers .

3.There are many birds _________ (sing) happily in the tree .

4.They spent a long time _________ (argue) about the boring things .

5.I ______________ (visit) my good friend at this time last night .