and other fuels are used. Second, the United States　　　　　　　　     2.——

is not completely developing all it energy sources. For　　　　　　      3.——

example, the use of coal has been limited because of　　　　　　　　   4.——

coal burning causes pollution. The third reason for

the energy problem is American's dependence in oil　　　　　　　　　　 5.——

from other countries. If these countries refuses to sell its　　　　  　　   6.——

oil, all Americans feel the effects. But probably the most

important reason for the energy problem is which　　　　　　　　　　  7.——

the United States has no acceptable alternative　　　　　　　　　　    8.——

sources of energy. Both solar power and nuclear power

are possibilities, but solar power is not complete　　　　　　　　　　  9.——

developed yet, because many people feel that nuclear　　　　　　　　   10.——

power is dangerous.

A：Hello, Li Lei!

B:Hello, Mike! Where are you going to? 　　　　　　　　　　 　　　　　　　　　　 　　   1. ________

A：I'm going to the shop. Do you want go, too? 　　　　　　 　　　　　　　　　　 　　   2. ________

B:Yes. Is the shop open in this time of day? 　　　　　　　　　　 　　　　　　　　　　 　　   3. ________

A：Yes, I think so. It open in the afternoon. 　　　　　　　　　　 　　　　　　　　　　 4. ________

B:But it's Saturday today. Is the shop close on Saturday afternoon?     　　   5. ________

A：We can phone to them and find out. 　　　　　　　　　　 　　　　　　　　　　 6. ________

Are you know their number? 　　   　　　　　　　　　　 　　　　　　　　　　 　　　　　　  7. ________

B:No, I don't. Let's find it on the phone book. 　　　　   　　　　　　　　　　 　　   8. ________

A：That's good idea. But where is the phone book? 　　　　　　　　　　 　　   9. ________

I can't find it somewhere. 　　　　　　　　　　 　　　　　　　　　　 　　　　　　　　　　 　　   10. ________