I left my handbag on the train, but luckily someone gave it to a railway official.—How unbelievable to get it back! I mean, someone ______ it.

______Lily ______Lucy may go to the concert because they have got only one ticket.

My physics teacher has given me so much help that I really want to do something for him _____.[ ]

I have difficulty making myself understood in English, you know.–______ Things will improve with more practice.

It is no use to _____ the stupidity of his behavior to him, because he will never listen to your advice.