题干
-- What is your mother going to do this Saturday?
-- I'm not sure. She _____ go to see my grandmother.
A：can
B：may
C：must
D：should
答案(点此获取答案解析）
B
-- What is your mother going to do this Saturday?
-- I'm not sure. She _____ go to see my grandmother.
A：can
B：may
C：must
D：should
