22. My si ster will come back ______tow days.
A. at B. by C. in D. after
23. If there _____ a lot of traffic, you must wait.
A. is B. are C. were D. will
24. What about _____ out for a walk?
A. to go B. go C. going D. goes
25. ---Could you tell me how long ______ the book?
---Three days.
A. I can keep B. can I borrow C. I can borrow D. can I keep
26. There____ a class meeting this afternoon.
A. will have B. is going to have C. is going to be D. will to be
