问题
选择题
I was wondering what to do with my car which won't start ________ a kind man offered to help.
A.while
B.and
C.so
D.when
答案
答案:D
D 考察连词。句义:我当时正想着如何处理我的不能发动的汽车,就在那时,一个好心人帮助了我。根据句义排除BC项,when在这里表示就在那时,相当于at that time。故D正确。