________ the environment, many supermarkets in China stopped providing free plastic bags.

Which would you like，Coke or tea — ．I prefer coffee．

The Changjiang River is _________in the world.

Do you have any idea what Hawk does all day?— I know he spends at least as much time watching TV as he _______.

The workers agreed to ______ the strike ifthe company would satisfy their demands for better salaries and workingconditions.