题干
-- Do you have any plans for this Sunday?
-- I'm not sure. I ______ go to the countryside to see my grandmother.
A：can
B：must
C：may
D：need
答案(点此获取答案解析）
C
-- Do you have any plans for this Sunday?
-- I'm not sure. I ______ go to the countryside to see my grandmother.
A：can
B：must
C：may
D：need
