21．---Shall I tell your best friends what happened to you yesterday?
— they ask you．
| A．Not if | B．Not unless | C．Not except | D．Not though |
（届北京市东城区高三3月质量调研）
--Is Jack still in hospital?
--Yes. He _________ the bad food.
| A．wouldn’t eat | B．shouldn’t eat |
| C．wouldn’t have eaten | D．shouldn’t have eaten |
（2014届天津市蓟县第二中学高三第一次模拟考试）
As it turned out to be a small house party, we so formally.
| A．needn’t dress up | B．did not need have dressed up |
| C．did not need to dress up | D．needn’t have dressed up |
（届安徽省安庆市高三第二次模拟考试）
Had Yeats stopped writing at age 40, probably he ______valued as a minor poet now.
| A．would be | B．had been | C．is | D．would have been |
（2014届福建省泉州市高三质检）
If it hadn’t rained so hard last night，it_______ so cold today.
| A．would’t be | B．hadn’t been | C．weren’t | D．wouldn’t have been |
（届北京市东城区普通校高三3月联考）
What a kind teacher. But for his help, I __________ my study.
| A．wouldn’t finish | B．wouldn’t have finished |
| C．shouldn’t have finished | D．mustn’t have finished |