题目

He said he ___(stay)here for another two days.
The doctor said Jim must__(operate)on at once
'____the bridge___(repair)yet?''yes the workers ___already____(repair)it'
We are in Grade one this year,so we____(teach)physice next year
'Where were you last might?''I__(ask)to help Tom at home
His father usually ___(take)a walk after supper before
请解释一下第四题和第五题

提问时间：2020-10-11

答案

1.be operated
2.Has the bridge been repaird have repaird
3.will teach
4.was asked
5took
你昨晚去哪儿了?“我被要求帮助汤姆在家 用被动
第五题有个before 之前,所以用过去时