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

I’ve had a bad cough recently.—-Me too. I’ve never experienced ______ of air pollution in cities before.

The police saw the woman _______ a bus and _______ a taxi.

I’m going to Sanya for the summer holiday ——-______________!.

The hungry man eats his food _______he hadn ‘ t eaten for a week

Have you heard of Jinjiang City?—SureIt has been honoured with the title “China Shoes Capital” and it continues to top Fujian Province economic growth