1. being ignorant of the law is not accepted as an ________ for breaking the law.
a) excuse b) intention c) option d) approval
2. within two days， the army fired more than two hundred rockets and missiles at military ________ in the coastal city.
a) goals b) aims c) targets d) destinations
3. it is said in some parts of the world， goats， rather than cows， serve as a vital _______ of milk.
a) storage b) source c) reserve d) resource
4. “this light is too ________ for me to read by. don‘t we have a brighter bulb some where”; said the elderly man.
a) mild b) dim c) minute d) slight
5. we have arranged to go to the cinema on friday， but we can be ________ and go another day.
a) reliable b) probable c) feasible d) flexible
答案：acbbd
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