To make our city greener and cleaner, we need ______ trees.

I usually do my homework _____than Mary. But she makes fewer mistakes because she is_____.

—Would you please drive ______? My train is leaving. —I’d like to, but safety comes first.

I am sure that we can do our job better with______ money and _________ people.

 –- Why is Tom unhappy today? -- He got______ points of all the boys.