Sincethereisabundantfoodinthesea,itisunderstandablethat...
来源：语文精选馆 1.24W
问题详情：
Since there is abundant food in the sea, it is understandable that some of the creatures that evolved on land __________ to the sea.
A. would have returned B. could have returned
C. might have returned D. should have returned
【回答】
D
知识点：虚拟语气与情态动词
题型：选择题
