---What is your mother going to do this Saturday ?
---I’m mot sure . She ____ go to see my grandmother .
A. can B. must C. may
---What is your mother going to do this Saturday ?
---I’m mot sure . She ____ go to see my grandmother .
A. can B. must C. may
C
【解析】can表示具备某种能力;must表示推测,非常肯定。May表示对现在的一种推测。根据题意答案应选C