.Mike didn’t start＿＿＿＿the importance of a foreign language t

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.Mike didn’t start＿＿＿＿the importance of a foreign language till he graduated from school.　　A.knowing B.to know　C.know D.to have known这道题,为什么是选B,而不是选其他的,

not until ==not till 直到.才.
本句考点仅仅是start的用法
a 表示正在开始做某事
b know 是延续性没有现在分词.knowing 是adj 或者V.但不是know的进行时
c 没有跟动词原型的时候
d 因为毕业先发生,知道重要性是后发生的.所以不能用现在完成,

michael didn"t start__the importance of a foreign language u Many students didn't realize the importance of study ______ Many students didn't realize the importance of study__they l Many students didn’t realize the importance of study _______ Why didn’t you buy that pair of trousers?Don't you like the＿求翻译~高手来Someone of his importance didn't have the time to spe someone of his importance didn't have the time to spend with Many a student__ the importance of learning a foreign langua Only at work ________ the importance of mastering a foreign It was a meeting _____ importance I didn’t realize at the ti Long ago,people didn't know the earth＿＿round the sun.A.moves the advantages of knowing a foreign language初中作文