—John, don’t waste any time and there’s only 25 minutes left before the train leaves. —Don’t worry , mum. I think I can ____it.
26.______life began on the earth is one of the biggest puzzles to scientists.
25.---Let’s throw a surprise party for mom’s 50th birthday. ---That’s a good idea. We________several of her friends.
24.________fit, we ought to learn more about our body and be careful with what we eat.
23.Mike must be angry with me, for he walked________me without even saying hello.
22.In middle schools all over China, boys_____not to wear their hair long.