问题
In modern society, alternative energies __________ traditional ones are playing an important role in our daily lifeThat’s just because scientists have made great breakthroughs _________ the development of science and technology
A:for, during
B:of, during
C:by, in
D:to, in
B:of, during
C:by, in
D:to, in
正确答案是：
同类题型
The vegetables didn’t taste very good They_______ too long
Lisa is _________ exchange student from Britain, but she knows a lot about China.
We all know that how wonderful you are. It is not necessary for you to __________.
Are you satisfied with his answer— Not at all. It couldn’t have been ______________.