— Did you plan to meet here? — No, we met ________.
| A．by mistake | B．by accident |
| C．by the way | D．with chance |
— Who dares to go ? How about you ? — Sorry , I ____ .
| A．dare not to go | B．don''t dare to | C．don''t dare | D．dare not to |
It''s nearly seven o''clock . Jack ____ . be here at any moment .
| A．must | B．need | C．should | D．can |
Johny , you ____ play with the knife , you ____ hurt yourself .
| A．won''t ; can''t | B．mustn''t ; may | C．shouldn''t ; must | D．can''t ; shouldn''t |
— ____ he be at home now ?
— No . he ____ not . He ____ be in his office . He often goes home from work at almost twelve .
| A．Can ; can ; must | B．Must ; need ; can | C．May ; must ; must | D．May ; need ; must |
You had better not keep the window open , ____ ?
| A．will you | B．did you | C．had you | D．would you |