问题补充:
--- My mother’s birthday is coming; I don’t know what to buy for her.
--- Why not her French handbag?
A. buy; an
B. buying; a
C. buy; a
D. buys; /
答案:
A. buy; an
B. buying; a
(答案→)C. buy; a
D. buys; /
解析:句意:我母亲的生日快到了;我不知道买什么给她。为什么不给她买个法国手袋?Why not do sth?为什么不做某事?buy sb sth给某人买某物,表示数量“一”该用不定冠词,所以选C。