—Why are you looking so worried? —I sent an email to my son in America last week, but no reply ________.
My uncle ________ in Beijing for over 10 years. Now he lives in his hometown in Fuzhou.
How disappointing! They have finished________5% of the work.
I suggested the thief ________into prison.
Whom would you rather ________with you,Wang or Zhang?
________the temperature falling so rapidly,we couldn't go on with the experiment.