二、单项填空（共15小题；每小题1分，满分15分）
从A、B、C和D四个选项中，选出可以填入空白处的最佳选项。
21. My birthday is coming up. Daniel will send me _____ e-dog as my birthday present.
A. a B. an C. / D. the
22. Mary will arrive Nanjing the morning of July 5 by plane.
A. to; on B. in; on C. in; in D. at; in
23. —There is salt in the kitchen. Would you like to go and get _____, Tom?
—OK!
A. little; some B. few; some C. a little; some D. a few; any
