Body language can pass message. In China ,_____heads often means agreement.

He is a little bit mysterious these days. Nobody in our company knows exactly.

Why do you recommend Li Hong for the Best Student Award—She is good at all the subjects. __________, she is polite and helpful.

(2009福州市高中毕业班第一次单科质量检查) Why didn’t you tell me there was no class today? You _____ me about it earlier.

下列各句中，没有语病的一句是（ ）