问题
选择题
_____ you _____ that South Korea has the Robot teachers?[ ]
A. Did; hear
B. Have; heard
C. Do; hear
答案
答案：B
搜题请搜索小程序“爱下问搜题”
_____ you _____ that South Korea has the Robot teachers?[ ]
A. Did; hear
B. Have; heard
C. Do; hear
答案：B