China is developing rapidly. —Yes, to make our country more prosperous, we should firmly the principle of scientific development. [ ]

In peace, too , the Red Cross is expected to send help _________there is human suffering.

－When shall wego to Hong Kong for holiday － I am notsure yet. _______ this Sunday ______ next Saturday is ok.

Had I known about this computer program, a huge amountof time and energy .

Americans eat ______ vegetables per person today as they did in 1990.