Doctors have been researching effect stand-up and other forms of comedy have on us.
| A．which | B．what | C．whatever | D．whichever |
I would rather they ________ tomorrow.
| A．came | B．come | C．will come | D．shall come |
He gave us advice that this work ________.
| A．should cancel | B．would be cancelled |
| C．not be cancelled | D．should not cancel |
It's suggested that some activities ________ to celebrate the 30th anniversary of the Reform and Opening up.
| A．should hold | B．are held |
| C．be held | D．will be held |
The doctor recommended that you ________ swim after eating a large meal.
| A．wouldn't | B．couldn't | C．needn't | D．shouldn't |
Jack is a great talker.It's high time that he ________ something instead of just talking.(2012·辽宁)
| A．will do | B．has done | C．do | D．did |