25.Thanks for _____(help) me.

24.It’s very difficult for Tom ______(finish) the work on time.

23.You must be more careful to avoid _____(make) this kind of mistake again.

22.The Greens invited me ______(go) to their home this Saturday.

21.Lingling went to school without ______(have) breakfast today.

20.I can hear the students ____(read) kooks in the classroom at the moment.

19.There is too much noise.I can ____(hard) hear anything.

18.They don’t allow people ______(fish) in the lake.

17.He preferred ______(run) to ______(swim) last year.

16.I’m not clear about this matter, so I’d better _____(keep) quiet.

　 That’s a good idea.