John thinks it won’t be long he is ready for his new job. A. whenB. afterC. beforeD. sinc

问题补充：

John thinks it won’t be long he is ready for his new job.

A. when

B. after

C. before

D. since

答案：

A. when

B. after

(答案→)C. before

D. since

解析：句意：约翰认为要不了多久他就可以准备好新工作了。这句话用了固定句型：It will not be long before+从句…“还要多久就…/才…”，如果是It is/has been+一段时间+since…“自从…到现在有多久了”，选C。