He is now ______ on his second novel.( engaged occupiedbusy
2个回答

这题只能选engaged

这句话的意思是:他现在正忙着写他第二本小说.

idle首先要排除掉,完全相反的意思.

剩下的词语都可以用来表示致力于做某事、忙于某事等等相近的意思.关键是题目中后面给的介词是on.

其他几个词在使用的时候,后面接地介词都不是on:

be occupied in doing sth

be occupied with sth

be employed in doing sth

be busy doing sth

be busy with sth

be absorbed in sth

be buried in sth

只有be engaged in/on/upon sth 可以用介词on