If we go on using energy so wastefully , are that our oil wells will be dried up before new energy sources can be found to replace oil .
________ I admit that all these problems are difficult, I don’t agree that they can’t be solved.
Tom got to the hospital in time that day, ________the first bus.
--Why is the road so crowded? --The two underground lines ________.
--If you are admitted to a key university, ________ as a prize? --I’m looking forward to being paid for a journey to Tibet with my friends.
When you finish reading the book, you will have________better understanding of ______life.