How soon will you start your journey? —I’m not sure. I haven’t decided_____.

Can you tell me ______ live a low-carbon(低碳) life ?—-OK. By using both sides of the paper.

Be quiet, the head teacher Mr. Gu is coming.— Don’t worry. It _____ be him. Mr. Gu is much fatter.

Don’tspend time beating ona wall, to change it into a door.

Recently a debate about ______is real beauty has been raised. People are pushed to think some questions like ______ is better,artificial beauty or natural one.