—Where are the pens? —Sorry, I ________.
题型:选择题
问题:
—Where are the pens?
—Sorry, I ________. [ ]
A. not know
B. know not
C. don't know
D. not do know
—Where are the pens?
—Sorry, I ________. [ ]
A. not know
B. know not
C. don't know
D. not do know