题目内容

Students should by all means______ their studies though there are a lot of entertainments inviting them.
A.devote toB.fix onC.concentrate onD.pay their attention
C
 concentrate on全神贯注于, 其他三个短语也有类似的意思, 但结构为: devote one’s life/ oneself…to (doing) sth专心致力于; fix one’s eyes/ attention on sth ; pay (much)attention to (doing ) sth
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