问题
选择题
—Can you come to Susan's party?
—Sorry. I ________ look after my grandma. [ ]
A. am
B. have to
C. can
D. do
答案
答案：B
搜题请搜索小程序“爱下问搜题”
—Can you come to Susan's party?
—Sorry. I ________ look after my grandma. [ ]
A. am
B. have to
C. can
D. do
答案：B