第二部分：单项填空。（每小题1分，满分15分。）
21. —Do you think the weather is good enough for a picnic?
—Yes. You can't hope for _____ day at this time of the year.
A. a nice B. a nicer C. the nicer D. the nicest
22. _____impressed the audience most was ____ the magician Liu Qian played in this year's Spring Gala.
A. What; what B. What; that C. That; what D. That; that
