---________ did you go hiking? --- last weekend. A. When B. What C. Where
_________ brave children they are!
In summer, we must sleep with our windows __________ because of the hot weather.
Tom _______ 280 yuan for this bike last week.
I can enjoy the moon ___________ the window every night.
---Your bedroom is so dirty. Would you please _______, Peter?---OK, mum. I’ll do it right away.