你给我打电话时,我正站在图书馆的前面。I________ ________in front of the library when you________ ________.
Don't worry! We are old enough to look after (我们自己).
学习一门外语是非常重要的.(It's…to…)
我们都应该为保持我们学校干净尽一份力.(play a part in…)
父亲经常建议我多读有教育意义的书.(advise…to…)
When she's at home, she prefers the music that isn't too loud.