用所给词的正确形式填空。
小题1:There is a great chance for you _________ (meet) the famous athlete .
小题2:It’s easy for you __________ (finish) the work on computers .
小题3:There are many birds _________ (sing) happily in the tree .
小题4:They spent a long time _________ (argue) about the boring things .
小题5:I ______________ (visit) my good friend at this time last night .
