Our bad living habits will destroy the earth. Only by changingwe live can we save the earth．

34. The old workers made a very practical suggestion at the meeting, but it was _____ by the manager.

The population of Shanghai is ______ than that of Sichuan.—-Yes, the number of the population of Shanghai ______ 23 million.

She can’thelp______ the house because she’s busy making a cake.

Watch! —I ____ but ____ I ____ anything unusual