—It's too difficult for you to answer. —
题型:选择题
问题:
—It's too difficult for you to answer.
—Why ____ the teacher for help?[ ]
A. don't ask
B. not ask
C. not wait
D. don't wait
—It's too difficult for you to answer.
—Why ____ the teacher for help?[ ]
A. don't ask
B. not ask
C. not wait
D. don't wait