1.Jim was on board a boat across the Atlantic Ocean _____ suddenly the boat broke down and sank into the sea bacause of the storm. A.while B.when C.as D.after2.I am going to the post office. _____ you are there ,can you get me some stamps. A.as B.while C.if D.on 這道題選什么，可以用when嗎？

熱心網友

同意樓上的. 兩道都選B.1. when 引導的是不持續的動作動詞.如: I was reading a book when she came in. 這題沉船也是. 2.while 引導持續進行,存在的動作.如: She came in while I was reading.

熱心網友

以上兩題都選B1.when可翻譯成就在那時,引導短暫性動詞2.while 在......期間,引導持續性動詞

熱心網友

while后面一定是進行時when的前后有一個是進行時，依情況而定前后都是進行時，用while以上兩題都選B