问题

One of the requirements for a fire is that thematerial _________ to its burning temperature

A:that
B:which
C:what
D:of which

正确答案是：

同类题型

Mary insisted she ________ right and that Jack ________ to her.

Five workers ____ the mine disasterAfter the injured ___ to the hospital, doctors and nurses immediately got down to saving their lives

People usuallysome money for old age.

What’s your sister doing at the moment

It seems impossible for the two neighboring countriesto arrive at a ________ on the conflict in the near future