1 -you are late again,maria.you____here half an hour ago.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/19 15:10:10

1 -you are late again,maria.you____here half an hour ago.
-I'm too sorry.I'll be here on time next time.
a.should come b.can come c.should have come d.may come
2 -Is your sister a party member?
-yes.she______a party member for three years.
a.has joined b.has been c.has become d.has taken part in

c should+完成时表示过去应该做了某事而没做的……
b for three years,直到现在还是～所以不能是一个瞬间动作～join
become take part in 都是瞬时动作

You are too late.The film since half an hour ago.A has begun I will remind you again half an hour before he half an hour ago 什么意思? when ()it ()?(arrive) half an hour ago Sam ( )here half an hour ago a half hour later\after half an hour\after half an hour late I called you half an hour ago,（）you were not at home.( )you Sorry,I ordered my food half an hour ago.对“half an hour ago” "You'd better hurry.You're already half an-hour late for cla I have waited for you since half an hour ago 此话成立吗,意思是? you have missed the train ,it ____(leave)half an hour ago -___ you ____ the next yet?-Yes,I ___ it half an hour ago.