问题
选择题
Boys and girls, try not ______ in class.[ ]
A. sleep
B. to sleep
C. sleeping
D. sleepping
答案
B
搜题请搜索小程序“爱下问搜题”
Boys and girls, try not ______ in class.[ ]
A. sleep
B. to sleep
C. sleeping
D. sleepping
B
