1 . 由于水位上升，这些鸟儿的栖息地正在受到威胁。
The habitat of these birds ______________ on account of the rising water level.

2 . At present, a large number of wild animals ________ at the nature reserve in Sichuan Province.

A．is protecting

B．is being protected

C．are protecting

D．are being protected

3 . 房间在装饰，我们现在还不能使用。
The room ________. We can’t use it now.