1 if i say"( )basketball!",he goes to catch a ball or puts it into a basket.

问题描述:

1 if i say"( )basketball!",he goes to catch a ball or puts it into a basket.
A play B plays Cdo Ddoes
2 what a fine day!how about( )out for a walk?
Ago Bto go Cgone Dgoing

1.A 引号里的是祈使句,动词原形开头
2.D about是介词后面接动词的时候用ing形式的.