—____.

A. You are welcomeB. It's a pleasureC. Never mind

【题目】We have been friends _________．
A.last year
B.one year ago
C.since we met last year
D.when we met last year．

【题目】— _________
— Sorry, I won't．I'll pick it up．
A.Try to keep the classroom clean．
B.Don't make any noise in public．
C.Let's pick up the litter on the ground．
D.Don't throw litter everywhere．

【题目】The WWF is working hard _________ the animals in danger．
A.save
B.to save
C.saves
D.saved

A. is B. be C. are D. am

A. a, theB. the, aC. x, theD. the，the

— The small one, please.

A. andB. butC. orD. so

A. watchB. are readingC. readD. to watch

【题目】Nothing is _________ than riding．I like it best．
A.enjoyable
B.more enjoyable
C.most enjoyable
D.the most enjoyable

— OK. I'll follow it.

A. Be noisyB. Keep quietC. Talk loudlyD. Don't wear a hat