1. Jim writes Tom does.
A. as careful as B. as carefully as C. less careful than D. so carefully as
2. ---Must we finish our homework this afternoon?
---No, you __ .
A. mustn’t B. can’t C. may not D. needn’t
3. They don’t want the place because they like it .
A. leave B. left C. leaving D. to leave
4. Have you been to Beijing ______?
A. already B. since C. yesterday D. yet