I.语法填空
Alice: Mr. Black, This is Alice speaking. I’m calling to ask you 1 I can take the afternoon off today.
Black: Well, of course. 2 ？can you tell me what the problem is, Alice
Alice: OK, Mr. Black. My son is going to take part in a singing 3 (4 .compete) to be held in Washington tomorrow.He’s got so many things to take that he can’t go there
