50. The phrase “hold water” in the last paragraph most probably means ”_____”.

A. to be believable B. to be valuable C. to be admirable D. to be suitable

49. The author develops the third paragraph mainly 　　　　　　.

　　　 A. by cause and effect　　　　　 B. by order in space

C. by order in time　　　　　　　 D. by examples

48. Which of the following is TRUE according to the test?　　　　　　　

　　　 A. Eating garlic is good for our eyes.

　　　 B. Sticky sweets are damaging to our teeth.

　　　 C. Swimming after a meal is dangerous.

　　　 D. Carrots prevent people from catching colds.

9．A．put away　　 B．get down　　　 C．hand out　 D．take off

8．A．admit　　　 B．consider　　 C．decide　 　　D．believe

7．A．keeping　　　 B．placing　　 C．pulling　 D．giving

6．A．examining　 B．measuring　 C．drawing　 D．packing

5．A．outside　　　 B．whole　　 C．table　　 D．inside

4．A．ordinary　　 B．normal　　 C．different　 D．regular