I was________nervous when I gave the speech in public that I forgot everything I wanted to say in thefirst few minutes [ ]

We don’t know how to prevent the flu. Shall we ask Doctor Wang Hai for______

Every few years, the coal workers ______their lungs X-rayed to ensure their health.[ ]

Nothing is so easy as _____ parents to raise their expectations of their children too high.

How old is your sister– .We had a special party for her birthday yesterday.