询问英语时态问题1.tom（ has been working ）in the library every night over the last three months括号里是 has been working ,你看 over the last three months 不是过去三个月嘛?那不应该是过去完成进行时嘛?不包括现在 ,类此这样的,
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询问英语时态问题
1.tom（ has been working ）in the library every night over the last three months
括号里是 has been working ,你看 over the last three months 不是过去三个月嘛?那不应该是过去完成进行时嘛?不包括现在 ,类此这样的,
答