I went a balloon but I didn’t see anyone balloons.
A. to buy, to sell
B. to buy, selling
C. buying, selling
D. buying, to sell
网友回答
A. to buy, to sell
(答案→)B. to buy, selling
C. buying, selling
D. buying, to sell
解析:本题考查动词及非谓语动词。句中go to do去做某事,see sb doing看到某人做某事。句意:我去买气球,但我没有看到任何人卖气球。