问题
If we ______ take environmental problems seriously, the earth _______ worse and worse.
A:don’t; will be
B:won’t; isn’t
C:won’t; is
D:don’t; won’t be
B:won’t; isn’t
C:won’t; is
D:don’t; won’t be
正确答案是：
同类题型
The rain has stopped. Why not ___________ the raincoat?
Miss Chen teaches _______ English this term. —You’re lucky. _______ is a very good teacher.
The old pen is broken, I’d like ______ one to write with.
Tell the students ______ soccer on the street.
No regular advertiser dare produce anything that fails to stick to the _______ of his advertisement.