Eventhetopstudentsinourclasscan’tworkoutthisproblem.Soi...
问题详情:
Even the top students in our class can’t work out this problem. So it ______ be very difficult.
A. can B. may C. must D. need
【回答】
C
知识点:情态动词
题型:选择题
问题详情:
Even the top students in our class can’t work out this problem. So it ______ be very difficult.
A. can B. may C. must D. need
【回答】
C
知识点:情态动词
题型:选择题