问题
There is no simple answer, _____ is often the case in science.
A:as
B:that
C:when
D:where
B:that
C:when
D:where
正确答案是：
同类题型
Congratulations! Li Ming, you’re the winner in the running race.
It’s difficult to the effects of the changes.[ ]
She is going to spend part of her week in Liverpool where she ______ on the beach with her children
_______ you ______ in this school for more than ten years —Yes, I ______ here in 2002.