Question

I had just got up and was about to cook my breakfast ________ the telephone rang loudly, but it hung up ________ I could answer it．

1. A.
   while; when
2. B.
   when; as
3. C.
   as; after
4. D.
   when; before

Answer 1

D
第一个空用when作并列连词，意为“正在那时或这时”，前面常与had done/was doing/was about to do连用；第二个空用before。表示“我还没来得及接，电话就挂断了”。