He is a fan of AC Milan and never misses any of its games ________ other teams．

A．with

B．against

C．for

Tony knows little Japanese, ________ he can't understand the instructions of his new camera．

A．so

B．or

C．but

Mum came in with a serious look, and I knew ________ was wrong．

A．nothing

B．anything

C．something

These newspapers are free．You ________ keep one if you like．

A．may

B．should

C．must

Song Zuying’s voice is so sweet and her songs ________ very beautiful．

A．taste

B．smell

C．sound

I ________ e-mails to my pen pal when Susan called me last night．

A．was sending

B．am sending

C．sent

________ a teacher, John thinks that his main duty is to help the students to become better learners．

A．As

B．By

C．About

We ________ careful when we are walking across the road．There are too many vehicles now．

A．can be

B．may be

C．must be

There’s ________ milk at home．We have to buy some this afternoon．

A．a little

B．little

C．a few

Professor Yi Zhongtian ________ to the Talk Show on CCTV-1 last weekend．

A．invites

B．invited

C．was invited