词汇应用根据下面所给的英文单词词首或中文释义写出相应的单词的正确形式，使
意思通顺。
All three teams a _______different approaches to the problem.
Scientists have been trying to find e ________to prove there are aliens living on earth.
The little girl was_______(模仿） her big brother by trying to walk like him.
He has all the ________ (品质) of a successful businessman.
Her father was a quiet man with________(优雅的） manners.