re still very cautious about ________side effect the new medicine will bring about, although the experts have triedit on about 2000 patients．

May I speak to your manager Mr. Williams at fiveo’clock tonight–I’m sorry. Mr. Williams _______ to a conference longbefore then.”

China replaced Japan in 2010 as No. 2economy, _____ China’s continuing rise in economic and political influences.

My son seldom has breakfast.— It is unhealthy habit. You must ask him to change it.

It is so crowded. Where is Jack?—He is very tall. We can easily _____ him in the crowd.