The heavy snow didn’t        the international airlines.

David        his brother but he is taller than his brother.

—What are you packing so many books for, Grandma?
—I’ll        to the kids in West China.

The students are        the leaflets(传单) to people over there to ask them to protect our earth.

Spring has come. We can’t        the plan. The trees must be planted this week.

I made some signs to         around the school.

“Learning from Lei Feng Day” is only two weeks from now. We need to         a plan about it.

The company wants to         a school for the poor children.

The teachers encourage their students to         the problems by themselves, and in this way
students can enjoy success.

My bike is broken. Could you help me to        ?