用适当介词填空What do you do it____?
问题描述:
用适当介词填空What do you do it____?
答
What do you do it__on__?
答
for
for
for
答
为你解答.
What do you do it (for)?(介词填空)
你为什么做这件事?
解释:what for,为什么,相当于why.