21. —Would you like to go for an outing with us？
— , for I have something important to do.
A. I will B. I'd love to C. I don't know D. I'd rather not
22 —What's the matter with Rod？
—I think he's still that he didn't pass the driving test.
A. excited B. loose C. upset D. glad
23. —Frank, what do you usually do at the weather station？
—I temperatures at 8 and 12 o'clock every day in the notebook.
A. put up B. put on C. set up D. set down
