问题

Why did you laugh just now?— John wanted to tell usvery funny joke, but he forgotend himself.
A:/; the
B:a; an
C:a; the
D:the; the
B:a; an
C:a; the
D:the; the
正确答案是:
同类题型
.—____ did you leave the classroom? —____ I saw my daughter sit down and read her book.
_____ do you live from your school? —About ten minutes’ walk. [ ]
Excuse me, could you tell me _________? — Sorry, I’m not sure.
Why don’t you _____ your teacher for help when you can’t finish _____ it by yourself ?