题目内容
8、He was busy writing a story，only ______ once in a while to smoke a cigarette．
A．to stop B．stopping
C．to have stopped D．having stopped
试题答案
8、B
He was busy writing a story，only _________ once in a while to smoke a cigarette．
A．to stop B．stopping
C．to have stopped D．having stopped
查看习题详情和答案>>He was busy writing a story，only ______ once in a while to smoke a cigarette．
A．to stop B．stopping
C．to have stopped D．having stopped
查看习题详情和答案>>He was busy writing a story，only _________ once in a while to smoke a cigarette．
A．to stop B．stopping
C．to have stopped D．having stopped
查看习题详情和答案>>