【2012贵州毕节】—Were you at home at 9:00 last night? I called you but nobody answered.—Sorry,I ______ at that time.
---- Mom, when shall we go to Weifang Museum this weekend? ---- Oh, sorry. I’m going to Beijing for a meeting. ____ Saturday ____. Sunday is OK.
After a three hours’ long walk, the boys look rather______.
_____ great scientist Qian Xuesen is!
The moonlight goes _____ the window and makes the room bright.
Teenagers should learn to protect ______ from all kinds of danger.