She looks forward to _____ the Great Wall.

In Yunan Province, the drought is still getting worse．More than two billion yuan and eleven million people are to drought relief work.

Parents are advised to take pressure ____ a child and give him some encouragement before an exam.

Mr Wang didn’t imagine ____ a teacher inhis childhood．

It was 4 o’clock when the front doorbell rangMrsClarke was __________ tea at the time