一道英语题31. —I don't know_________to do with this maths problem
一道英语题
31. —I don't know_________to do with this maths problem. It's too hard.
— You can ask your classmates or teachers for help.
A. which B. how C. what D. when
请把what to do 和how to do...的用法发来
那这选什么 没有what do with
答案选C