25．How convenient the public transportation is! There ______ be any difficulty traveling around．
| A．mustn't | B．wouldn't | C．shouldn't | D．needn't |
_____ the Internet brings much profit in, it can cause o lot of social problem.
| A．If | B．While | C．Once | D．When |
They had quarrelled all the time before they_____their engagement.
| A．broke off | B．broke through | C．broke down | D．broke out |
“Long time no see” is______ sort of informal. But it is part of_____language that Americans use daily.
A. the; aB. a; the C. /; theD a; a
The media can often help solve problems and draw attention _____ ｓｉｔｕａｔｉｏｎｓ ＿＿＿＿＿ ｈｅｌｐ ｉｓ ｎｅｅｄｅｄ．
| A．ｉｎ；ｔｈａｔ | B．ｔｏ； ｔｈａｔ |
| C．ｉｎ；ｗｈｅｒｅ | D．ｔｏ；ｗｈｅｒｅ |
＂I can’t _____ your rudeness any more, leave the room＂, shouted Mary.
| A．put up to | B．put up from | C．put up into | D．put up with |