问题
选择题
Can you hear someone ________ for help?[ ]
A. called
B. to call
C. calls
D. calling
答案
答案：D
搜题请搜索小程序“爱下问搜题”
Can you hear someone ________ for help?[ ]
A. called
B. to call
C. calls
D. calling
答案：D
