he is sitting on the beach and ()orange juice.这里答案是drinking 我认为进行时be doing所以是

问题描述:

he is sitting on the beach and ()orange juice.这里答案是drinking 我认为进行时be doing所以是
is drinking 我的盲点在哪里呢?

系动词 is 是可以共用的
is drinking 没有错,但这里一个空只能填一个词的情况下,drinking就可以啦