A father in the UK has a wonderful ideas to send his kids to school on time. He takes his sons to their school in a white tank(坦克)
-Drive carefully so that everyone can enjoy a long life. -Yes, I agree with you.
-Why have you decided on the countryside for your holiday? -Because we are there is lots of clear, fresh air there.
Every minute about ____ babies are born in the world, so the world’s population is increasing by _____million every year.
Acid rain comes from _____.
Many _____ in ______ could hear no better than 65-year-old people, for they like pop music.