Yesterday Mary couldn't finish her homework,so she has to go on ___ it this afternoon.(do)
问题描述:
Yesterday Mary couldn't finish her homework,so she has to go on ___ it this afternoon.(do)
答
doing,
go on donging sth.
答
do
have to do sth.
答
填doing
go on 后面接动词进行时,表示继续做某事