U.S. President Barack Obama ______ a speech at a dialogue with Chinese youth at the Shanghai Science and Technology Museum during his four-day state visit to China, Nov. 16, 2009.
| A．addressed | B．delivered | C．composed | D．recited |
I ________ thank you too much for all your help to my son while we were away from home.
| A．won't | B．can't | C．can | D．will |
It ________ be the postman at the door.It's only six o'clock.
| A．mustn't | B．can't | C．won't | D．needn't |
—________it be Tom that stole the manager's mobile phone?
—No.As far as I know, Tom is very honest.
| A．May | B．Can | C．Must | D．Should |
—How's your new babysitter?
—We ________ ask for a better one.All our kids love her so much.(2011·浙江)
| A．should | B．might | C．mustn't | D．couldn't |
—I don't really like James.Why did you invite him?
—Don't worry.He ________ come.He said he wasn't certain what his plans were.(2011·北京)
| A．must not | B．need not |
| C．would not | D．might not |