问题

I’m very tiredI _______ on the night shift for several weeks.

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

正确答案是：

同类题型

What does your brother look like—____

He works as an engineer now, but he _____ on a farm for three years

He _______ foreigners in his cafe before, so he didn’t know how to serve the American family

Only a small percentage of the graduates___________________ a job. Zxxk

A number of foreigners come to see the Great Wall every year.—-Yes. It’s not only famous and beautiful but also the of China.