---Why do you eat all the vegetables but leave ____ meat untouched?
---- I’m on ____ diet.
| A．a; the | B．the; / | C．/;a | D．the; a |
He did not regret saying what he did but felt that he ________ it differently.
| A．could express | B．would express |
| C．could have expressed | D．must have expressed |
We ________ have bought so much food now that Suzie won't be with us for dinner.(2012·江西)
| A．may not | B．needn't | C．can't | D．mustn't |
—Happy birthday!
—Thank you！It's the best present I ________ for.(2012·江苏)
| A．should have wished | B．must have wished |
| C．may have wished | D．could have wished |
If you don't want to go swimming，you ________ as well stay at home.Actually，it is up to you to decide.
| A．should | B．would | C．can | D．may |
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 |