1.our natural resources will last longer ( ) we learn to recycle them.
A unless B if C though D as
2.( ) the doctor is uncertain about is when my mother will recover from the serious disease.
A That B Why C What D Whether
3.( ) is believed that a certain amount of stress is important in providing people with motivation.
A It B As C What D That
4.-How about seeing a film this afternoon.
-( )I haven't seen one for quite a while.
A No chance B Go ahead C Why not D My pleasure
要给原因,每题翻译下.
参考资料:原创回答团
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