—— Alice looks sad. Did you tell her about the accident? ——— Yes， but I ________ her just before her final exams.
| A．shouldn’t tell | B．shouldn’t have told |
| C．needn’t tell | D．mustn’t have told |
However, at times this balance in nature is disturbed, a number of possibly unforeseen effects.
| A．lying in | B．calling in | C．resulting in | D．taking in |
Why don’t you bring to his attention that you are too busy to do it?
| A．which | B．it | C．what | D．that |
“The answer sheet written with a pencil be cancelled,” declared the teacher.
| A．shall | B．should | C．must | D．may |
Li yanhong, co-founder of search engine Baidn, has deep understanding of Internet technology.
| A．/;a | B．the; / | C．a; a | D．the; a |
－I’m entering for the English speech contest.
－__________!
| A．Congratulations | B．Enjoy yourself |
| C．Wonderful | D．Good luck |