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She swam to the shore __ the night in the watre?

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She swam to the shore __ the night in the watre?
A.having spent B.having spending C.when spending D had spent
我想问的是:选项C,when+doing 这是什么用法啊?
Please bring these things____ the kitchen for me
to ,我觉得应该是 from.bring ...from ..从哪里带来,
As your friend ,i'll do ____ help you
A.that I can do B.what I can to C.all that I can D.what I can do
尤其是 C
She swam to the shore __ the night in the watre?
when+doing 中间省略sb+be动词,when引导的时间状语从句,当它与主句主语一致时,可以使用此结构.举例:When doing his homework,Tom fell asleep.主句和从句的主语一致,都是Tom,所以这样用.
bring to说明“我”此刻正在厨房里,而“你”不在厨房里,“我”请“你”把东西拿进来.from应该也是可以的,看具体语境了.
A不行,缺少先行词.C缺少to,表示目的.D后面不能加do,因为what I can做I'll do短语中do的宾语,不能再在后面加do.而且它也缺少一个to.
再问: 为什么一定要有 to 咧
再答: do sth to help sb不定式,表目的。