1£®I'd appreciate it if you let me know in advance whether or not you will be coming.

2£®There's no doubt that Ye Shiwen is one of the best women swimmers in the world.

3£®Whatever they end up doing (do)£¬they will be teaching themselves a great deal.

4£®The flies kept upsetting Li Lei when he was doing his homework.He was so upset that he upset the cup on the desk.(upset)

5£®It is predicted (predict) that the price of house will continue to fall.