metea911
果实
共回答了22个问题采纳率:90.9% 举报
1.I spent two weeks in reading this book.
句中 this book是reading的宾语;reading this book是介词in 的宾语.in也可以省略,这样in reading this book 做spent 的宾语补足语.
2.Rex soon became an expert at opening the gate.
句中opening是动名词,因为在介词后面,必须具有名词性质,故动词名词化了.
1年前
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