Drugs can do great harm (危害) not only to you but also to your family. You must be _________them.
–Hi, Jack. Nice to meet you here in Taizhou!--Me too. But I _______ you were in Shanghai
—I’m tired out these days.--Well, you’d better keep a _____ between work and play.
The energy from the sun and wind is very cheap and it will never .
People ______ drive after drinking alcohol(酒). It’s against the law.
–Would you mind asking Jenny to show me around Meilanfang Park?--____________. She’s busy with her work.