问题
It’s neither aliens nor a rare disease ________ will threaten the human race in the future, but climate change.
A:whether
B:which
C:what
D:that
B:which
C:what
D:that
正确答案是：
同类题型
He visited the Effel Tower, which _____ to 1889, during his stay in France last summer.
Mary, are you sure your aunt ___ back from America?—YesMy mother ___ meI am going to see her now
The Smiths are considering ______ to England because they ______ the cold weather there.
Have you decided where to spend your holiday — Not yet . I ______ go to Britain .
We know that the workers ____ all night but there is no other way. [ ]