Don’t worry. I’m sure you’ll succeed if you work hard.A. on timeB. in timeC. at timesD. a

问题补充：

Don’t worry. I’m sure you’ll succeed if you work hard.

A. on time

B. in time

C. at times

D. ahead of time

答案：

A. on time

(答案→)B. in time

C. at times

D. ahead of time

解析：短语辨析.A.按时;准时 B.及时; C. 有时;偶尔 D. 提前.根据题意,不要担心.如果你努力工作,我相信你会适时成功的.选B.