问题详情:
Nobody knows how people first came to these islands. They ______ from South America on rafts.
A. must have sailed B. can have sailed
C. might have sailed D. should have sailed
【回答】
C
知识点:虚拟语气与情态动词
题型:选择题
问题详情:
Nobody knows how people first came to these islands. They ______ from South America on rafts.
A. must have sailed B. can have sailed
C. might have sailed D. should have sailed
【回答】
C
知识点:虚拟语气与情态动词
题型:选择题