问题

Mum，you really need to have a rest！You ________in the kitchen ever since you came back home three hours ago

A:had worked
B:were working
C:have been working
D:worked

正确答案是：

同类题型

Not only the young but also the old are getting interested _____ WeChat (微信).—They can communicate more freely.

The bag is too small. Give me ______, please.

delighted me most was my son was admitted to Beijing University.

why didn’t you answer my call yesterdayafternoon— Sorry , I didn’t hear the phone I ___________asleep

－When shall we meet again, next Wednesday or Friday－____________day is OK. It’s not a problem to me.