小测验：选择正确的单词

1. Somebody denounced him to the military police as a spy.
   有人向宪兵队告发他为间谍。
2. She liked the adventures of a spy.
   她喜欢间谍的冒险。
3. Our lookout spied a man hiding in some bushes.
   我们的嘹望哨发现一个人藏在树丛中。
4. We spied a stranger hanging around the corner.
   我们发现一位陌生人在拐角处闲荡。
5. She spied her cat behind the curtain.
   她在帘子后面发现了她的猫。

　3个名词解释