Some people fear that ______ airpollution may bring about changes in ______ weather around the world.

constantly exposed to advertisements is annoying, but it ______ be pleasant sometimes.

I suppose we’ll go to plant trees next week.—-Terrific! Planting trees is a lot of fun.I’d like to ______you.

We have learned from the story that what is most valuable is not what we have in our lives but _____ we have in our lives.

Lin Shuhao has earned a good________at home and abroad for his excellent basketball skill and won over thousands of fans.