________ the rain falling so heavily, they couldn't go on with their drill.
问题描述：
________ the rain falling so heavily, they couldn't go on with their drill.
A.since B.as C for D with为什么选D
I wasn't first ________, for I saw smoke ________ from the window. A. to arrive; to rise B. arriving; rising C. to arrive; rising D. having arrived; risen
为什么用 to arrive
答
第一个问题,with引导整个句子做状语,而其他的是自己这个词作状语,不是整个句子,而英语中要求一个句子只能有一个主语一个宾语一个谓语,如果不是with,那么句子就有两个主语两个谓语了.
第二个问题,固定用法,记住：前面有序数词的情况,后面的动词要用不定式.而第二个空是动名词作状语.