21. —The weather is not good enough for the basketball match, is it?
—Not at all. We can’t have ______ at this time of the year.
A. a nicer day B. a worse day C. a nice day D. a bad day
22. —Have you ever been to the United States?
—Yes, I ______there last August.
A. had been B. went C. have been D. have gone
