问题
选择题
-Come and us, Mary.
-Sorry, I help my mum. [ ]
A. join; may
B. join in; need
C. join; can
D. join; have to
答案
答案：D
搜题请搜索小程序“爱下问搜题”
-Come and us, Mary.
-Sorry, I help my mum. [ ]
A. join; may
B. join in; need
C. join; can
D. join; have to
答案：D