在疑问句中动词用原形还是ing形式Are they ____football on the playground?A.playB,playing
问题描述:
在疑问句中动词用原形还是ing形式
Are they ____football on the playground?
A.play
B,playing
答
要看情况
答
选b
因为在句子前有are,并且后文说‘ on the playground’.表示现在进行时