You should have thanked the hostess before leaving. —I meant ______. But I couldn’t find her when I was leaving.

The use ofChinese by teachers in ______ English classroom must be restricted because itwill decrease _______ time when students are exposed to the English language

Do you go to school ______ bike or _____foot

Both of them refused to say sorryand neither was willing to talk to

下列句子，没有语病的一句是（3分）