Life has become so easy for children today that they the spirit to work hard.

A.lack B.lack of

C.are lacked D.are lacking of

A

【解析】

試題分析：考查動(dòng)詞。句意：生活對(duì)現(xiàn)在的孩子變得容易了，他們就沒(méi)有努力工作的意識(shí)了，因題中由tody可知用一般現(xiàn)在時(shí)，所以選A。

考點(diǎn)：考查動(dòng)詞

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