Please stop _________.It’s time for class.

Do you know Ang Lee’s latest film “Life of Pi”?—Of course, I like it very much. I the film several times.

Could I use your mobile phone? I have to call my mom for the coming class meeting. –Yes, of course you _____________.

Let me help you_____ swimming?[ ]

_____chapter in Oxford English often consists of four parts．—That’s right．And this chapter mainly talks about _____environmental problems．