According to the passage, which aspect of skyscrapers were some residents of North America concerned with in the late 1960's?

• A、The poor reception of radio and TV signals.
  
  

• B、The removal of trees and grass from building sites.
  
  

• C、The harmful effects on the city's plans.
  
  

• D、The obstruction of air traffic
  
  

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Saving Money

Where you save your money often depends on what you are saving for.If you are saving to buy a dictionary or to go to a concert, then you probably keep your money  31  in your room.

If you are   32   for a big purchase like a mountain bike or a school trip, where would you save your money?

One place to save money is the bank. Putting your money in a savings account will help your money   33   more money.If you put your money in a piggy bank (豬形儲蓄罐).one year later you'll still have the   34   amount of money you put in.If you put your money in a savings account, one year later, you'll have more money than you put in.Why?

When you keep your money in a   35   , your money earns interest.   36  is the amount of money a bank pays you to use your money. The bank uses your money(and the money of other people, too)to loan money to people and businesses.

Another way you can save money is to buy a certificate of deposit or CD.If you have some money that you don't need to use for a   37  time, this is a good way to make your money  38  .

Since the bank is using your money for that time period, it will  39  you interest. You will earn more interest with a CD than in a savings account. Can you guess why? It's because you promise to leave your money in the bank for a certain period of time. Banks pay  40  rates of interest.

A.long	B.same	C.bank
D.earn	E. pay	F.grow
G.inside	H.different	I.interest
J.somewhere	K.saving	L.raise

LEDs used in traffic lights are developed by Holonyak's students.

• A、 True
  
  

• B、False
  
  

• C、Not Given