咳咳。。首先。从词性角度。。这句句子里面已经有个isn't是be动词了 AB选项都是动词 所以不可能 这边我们需要一个形容词性的词 而d是副词 也不需要 。如果想用AB需要是It doesn't seem/appear
seem,介词,不能跟be动词一起,it doesn't seem that...
appear,介词,vt,不能跟be动词一起,it doesn't appear that
possibly,副词,在这里应该用possible
likely,形容词,可用,所以选C
那三个不是意思不对,而是语法不对。
seem用法:it seems that...不能说it is (not) seem that
appear同样,it appears that...不能说it is appear that
possibly: possibly是副词,it is(not)后面要接形容词,如果是“it is possible”就可以了。
另外,likely的主语不能是人,切记。
希望对你有帮助!
因为缺少副词,后面加LY的正是副词的结构