— On summer nights the weather is usually hot at night in the south of China.— Yes so I

问题补充：

— On summer nights, the weather is usually hot at night in the south of China.

— Yes, so I often go to sleep the window .

A. let, open

B. with, opened

C. with, closed

D. with, open

答案：

A. let, open

B. with, opened

C. with, closed

(答案→)D. with, open

解析：句意：在中国南方，夏天的晚上往往很热。是的，所以我经常打开窗户睡觉。With和，在这里表伴随，with+sth +形容词；open打开，在这里做形容词，做宾语，故选D。