You __ _ cross the road when the traffic lights are red. It’s dangerous. A. needn’t B. may not C. mustn’t
—Have you ever been to Qufu? —Yes. I went there last year. It’s a very _______ place.
下面全是元音字母的一组是
“BBC”means(意思是) .
下面字母按字母表前后顺序排列正确的一组是:
–Thank you.–______________.