Let's stop for a few minutes. I'm tired to walk any farther.
A. so B. enough C. too
– It’s terribly cold today, isn’t it?
– Yes. ________ yesterday.
A. So it was B. So was it C. So it is
– Were you at school when I called you?
– Yes, I ________ in the library.
A. studied B. am studying C. was studying
– I can’t give up smoking, doctor.
– For your health, I’m afraid you _______.
A. may B. can C. have to
– Do you like living in your hometown?
– Yes. I’ll ________ to work there after finishing school abroad（国外）.
A. return B. stop C. remain
– Why do you _______ the radio?
– I’m afraid of waking up the baby.
A. turn up B. turn on C. turn down