John thinks it would be long he is ready for his new job.A. whenB. afterC. beforeD. since

问题补充：

John thinks it would 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：考查固定句式。固定句式：It be 一段时间 before从句；句意：一段时间以后某事才发生；如果before后面使用现在时，前面就使用将来时；如果before后面是过去时，前面主句也是过去时。句意：John认为很久以后他才会适合这份工作。故C正确。