【題目】I'm very grateful to my high school teachers，without _____________help I wouldn't be so excellent.

A.theirB.whom

C.whoseD.which

【答案】C

【解析】

考查介詞+關(guān)系代詞引導(dǎo)的定語從句。句意：我非常感謝我的高中老師，沒有他們的幫助，我不會這么優(yōu)秀。without _____________help I wouldn't be so excellent.是一個定語從句，先行詞是my high school teachers，關(guān)系詞在從句中作定語，故選C。

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