Anny, don’t forget to_ _____the lights when you leave a room.—OK. Mum.

当你要向别人打听某事时，你应说：＂______________＂。

The paper is due next month, and I am working seven days ______ week, often long into______night.

Volunteering our time to help people ________ a good way to _______our free time.

Tourists cD.stage