问题
选择题
Hearing the news, Ruth could not help ___.
A．laugh
B．laughing
C．to laugh
D．laughed
答案
答案：B
搜题请搜索小程序“爱下问搜题”
Hearing the news, Ruth could not help ___.
A．laugh
B．laughing
C．to laugh
D．laughed
答案：B