Moreandmorepeoplehaverealizedthatwewon’thavecleanerwate...
来源:语文精选馆 1.08W
问题详情:
More and more people have realized that we won’t have cleaner water to drink unless something _______soon.
A. is done B. was done C. will be done D. to be done
【回答】
A
知识点:动词时态
题型:选择题