题干
---Mike must have known that.
---No, he ________. How _______ he?
---No, he ________. How _______ he?
A：mustn’t, must
B：may not, might
C：couldn’t, ca
D：needn’t, need
答案(点此获取答案解析）
C
灭绝生物的“复生”将不再是神话。如果世界上最后一只野驴刚死亡。以下较易成功“复生”野驴的方法是 ( )
