How difficult physics is! I really want to drop it !—_________you come on，you will do it better.

5. There sat an old man in a black coat,his head in his hands thinking.

w means of transport ________ in thiscity, so whether it will work out remains to be seen

_______ it is! Let’s go swimming.

The famous deaf dancer think that dancing is an activity ________ sight matters more than hearing.