In Australia ,he made a lot of friends ___a very practical know
问题描述:
In Australia ,he made a lot of friends ___a very practical know
答
In Australia he made a lot of friends _B_ a very useful knowledge of the English language.
A get B to get C getting D got 将useful改成practical:在澳大利亚他为了掌握实用的英语交了很多朋友.