Before I can give you an estimate,I must _______ the amount of material required.
答案解析
解析：
2.想出，制订出，产生
3.锻炼；训练（非正式用语）
4.有好结果，进行情况良好
5.（情况等的）发展，进行
turn out :1. 关掉
2.赶出，辞退
3.集合，出席
4.结局，原来是
pick out：1.分辨出
2.挑出，选出
3.细心研究后发现，领会某事
Pick on: 选中某人（尤指屡次）惩罚，批评或责任
选中某人做某事（尤指厌恶的事）
Make out:1. 理解，明白
2.看清，（勉强）辨认出
3.填写
4.假装，装成，声称
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