A train travelling at a speed of 75 m.p.h. enters a tunnel 2(1/2)miles long. The length of the train is 1/4mile. How long does it take for all of the train to pass through the tunnel, from the moment the front enters to the moment the rear emerges

单项选择题If 13 P 15 O is the code for M O O N, what is the code for S H O E

单项选择题Which letter can fill in the bracket666(S) 389(T) 972(N) 707( )

单项选择题C

单项选择题— Thank you from the bottom of my heart for saving my little girl蒺s life.— ._________— But I can't tell you how much I appreciate what you've done.— I'm just happy I could help.

单项选择题— I'd like to fix an appointment with the principal. Would ten o蒺clock tomorrowmorning be all right— ._________— Could I see him some time in the afternoon— Sorry again, but I'll ring you if somebody cancels.

单项选择题If you______ to see my butterfly collection, I'll be glad to show you.

单项选择题We must firmly follow the path of development that is ______China's national conditions.

单项选择题The defendant was__________ to ten years in prison for robbing a jewellery shop.

单项选择题Never before_______ won gold medals in the Olympic Games.

单项选择题Could I change my pounds ______dollars, please I'm off to the USA shortly.