Yesterday a thief_________ the bank and helped himself to millions of money.

The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job–________ my students have a try

Can you __________ me 5 minutes I wantyour advice.

Look at the photo of my family. I’m my father.

It is difficult for a teacher togive attention tochildren in a large classWe should reform the situation in order to meet each child’s needs