问题描述：
[紧急求助]判断一下.“English is the major foreign language ( ) in most schools in South America...
[紧急求助]判断一下.“English is the major foreign language ( ) in most schools in South America and Europe.”括号内是填taught还是is taught?为什么?要如何判断是过去分词表被动跟be+done?
[紧急求助]判断一下.“English is the major foreign language ( ) in most schools in South America and Europe.”括号内是填taught还是is taught?为什么?要如何判断是过去分词表被动跟be+done?
问题解答：
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