earnt both business and history, but she knows________of them well, thoughshe can speak on subjects in general.

The moonlight entered the room _______ the window and it made the room bright last night.

Not until I went through his paper_________ what rapid progress he had made in writing

Have you ever considered _______ Parissome day

(2009福建顺昌模拟)——We can never forget the days _______ the two astronauts in spaceship worked together and the days ________ we spent together