Don't sigh over the small achievement. , and I'm sure if you keep at it, you'll

 Don't sigh over the small achievement. _____ , and I'm sure if you keep at it, you'll see the light at the end of thetunnel!

A. Lookers-on see most of the game         

B. Constant dropping wears away the stone

C. The world is your oyster                                   

D. Lost time is never found again

试题答案

【答案】

B

【解析】

试题