______ which university to attend, the girl asked her teacher for advice.

_____ means to do what you promised.

Mr. Smiths was busy writing a story, only ______ once in a while to smoke a cigarette.

Clouds are gathering, I think we’d better ______for the hotel in case it ______to rain.

With so many people __in English every day, we can see it will be more and more important ___    a good knowledge of English．