问题
One of the biggest problems in food production has always been that people have no reliable access to exact information, ____________ is often the case in China
A:that
B:what
C:which
D:it
B:what
C:which
D:it
正确答案是：
同类题型
Do you need any help, Lucy——-Yes. The job is _________ I could do myself.
.—How was your weekend —_______.
(2009陕西宝鸡质检)People eatvegetables per person today as they did ten years ago.
Gary was behaving as if nothing _______.
（题文）He had his camera ready ____________ he saw something that would make a good picture.