_______while writing, he locked himself
题型:选择题
问题:
_______while writing, he locked himself in his study. [ ]
A. Not to interrupt
B. Not being interrupted
C. Not to be interrupted
D. Being not interrupted
_______while writing, he locked himself in his study. [ ]
A. Not to interrupt
B. Not being interrupted
C. Not to be interrupted
D. Being not interrupted