2001 proved to be the automaker's first losing year since 1992, when the company had lost $7.4 billion, which was primarily because of almost $7 billion in accounting charges.
(A) when the company had lost $7.4 billion, which was primarily because of
(B) when the company had lost $7.4 billion, primarily resulting from
(C) when the company lost $7.4 billion, primarily because of
(D) which is when the company lost $7.4 billion, and that was primarily because of
(E) which is when the company lost $7.4 billion, primarily resulting from
答案(c)沒問題
但我想問的是(d)(e)中whuch is when...的用法在問法上合理嗎
when是引導一個adv cl. 可以放在be動詞後嗎
那如果是what所引導的子句能嗎
有誰可以幫忙回答一下??