问题
选择题
—Thank you for ______ us.
—You are welcome.[ ]
A. help
B. to help
C. helping
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Thank you for ______ us.
—You are welcome.[ ]
A. help
B. to help
C. helping
答案：C