问题
Because of the shortage of coal in England, attempts ________ to use natural gas as a source of power.
A:have made
B:will have been made
C:are being made
D:will be making;
B:will have been made
C:are being made
D:will be making;
正确答案是：
同类题型
There are many islands ________ the southeast coast of China
Please come here again.—–I will surely ____ you when I come to your city someday
You see, I ____ all afternoon and I don’t seem to have done anything.
She ________a German. She has _______him for three years.
Journalists should base what they report____ facts, not just_____ they imagine to _____.[ ]