What is your mother doing?---She for oranges.A. is shoppingB. is buyingC. buysD. shops

问题补充：

What is your mother doing?---She for oranges.

A. is shopping

B. is buying

C. buys

D. shops

答案：

(答案→)A. is shopping

B. is buying

C. buys

D. shops

解析：此题考查现在进行时态。