C．room D．forest

A解析：由下文的in his cage可知。

4．A.with B．by

C．without D．for

C解析：笼中鸟“不用(without)”做任何事就可以得到食物和水。

5．A.pet B．friend

C．owner D．toy

A解析：由下文的who might______him as a pet可知，蝙蝠想成为小孩的“宠物(pet)”。

6．A.loved B．changed

C．formed D．finished

B解析：蝙蝠本是夜间活动的动物，根据下文的He got up in the early morning to fly to parks 可知，蝙蝠“改变(changed)”了原有的生活习惯。

7．A.and B．but

C．or D．so

D解析：蝙蝠早上飞到公园是为了让小孩发现他，故此处选用so。

8．A.teach B．keep

C．sell D．buy

B解析：由as a pet可知，小孩也许会把蝙蝠当宠物来“饲养(keep)”。

9．A.brave B．big

C．busy D．attractive

D解析：由下文的the children paid him little attention可知，蝙蝠没有“吸引力(attractive)”。

10．A.cover B．save

C．improve D．forget

C解析：由下文的He stuck lots of feathers(羽毛) to his body可知，蝙蝠决定“改善(improve)”它的外表。

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