问题

This notice _ aimed at increasing people’s awareness of the problem____ it has become quite extreme.

A:is before
B:was because
C:is because
D:has been before

正确答案是：

同类题型

The manager insisted that the work ____ finished by the end of this month.[ ]

John has really got the job because he showed me the official letter _____ him it.[ ]

The policy will _______a chain reaction of automaticspending cuts that can lead to thousands of job losses

Oh, this is ________ new school. Do you love it, Eddie—Of course. I can have many classmates to play with.

__________he was busy, _________he often helped us with our studies.