A window in the kitchen was （); there was rubbish everywhere, and curtains and carpet

A.shall close the window before we leave

B.will close the window before we leave

C.must close the window before we leave

D.close the window before we leave

A.Open the window

B.lose the window

C.on't open the window

Whoever broke the window should be ______ for it. (responsibility)

A.on

B.in

C.at

D.wit

It was Johnson broke the window of the classroom

A. that

B. who

C. which

D.whom

Window中最常用的图像文件格式有()、()、()、()。