日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

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

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

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

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

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