They have used all that they had.(改为同义句)They have ____ ____ ____ ____ they had.
问题描述：
They have used all that they had.(改为同义句)
They have ____ ____ ____ ____ they had.
答
make use of what
答
They have used what they had.
答
They have used all that they had.
=They have (made use of + what/whatever/everything/all) they had.
make use of=use 使用/利用