问题

Is there anything wrong with you, Jake? You look so pale．—I feel very tired．I _____on this boring paper every day so far this month

A:work
B:have been working
C:had been working
D:am working

正确答案是：

同类题型

The 24 solar terms ________ a great effect on Chinese people’s lives for thousands of years.

You’d better ____ up late.

The environmentalist said: “Making money isblameless, but I can’t ________ to unnecessary killing of wild animals for thatpurpose.”

The new school _________ in the past five years.

Our parents and teachers often ________ the importance of study hard _______ us.