21. — Do you think the weather is good enough for an outing?
— Yes. You couldn’t hope for ______ at this time of the month.
A. a nicer day B. the nicer day C. the nicest day D. a nice day
22．—Did you get to the railway station on time?
—Sure. The city center wasn't as crowded this morning as it usually ．
A．was B．is C．has been D．had been
