They have earned lots of money, so I______ believe that the business is a success. 

— Oh, really? Can Doris read through it in such a short time?— She covered the English novel ______ it took me, still less a simple story．

A short, thin man, __ past middle age, visited the manager and applied for the job.

Tonny’s parents thought he was at school, but ______ he was in an Internet bar.

Wang Ping hesitated for ___ before he ___ to the question.