What a pity. Considering his ability and experience, he ____ better.

According to the air traffic rules, you______switch off your mobile phone before bearding.

Although this ____ sound like a simple task, great care is needed.

--- I’m sorry. I ___________ at you the other day.
--- Forget it. I was a bit out of control myself.

Thank you for all your hard work last week. I don’t think we _____ it without you.

Don’t play with dog, Jack, for it _____ be dangerous at times.

—Oh my god! You__ wear slippers to attend the conference．
—I'm sorry I forgot there is a conference．

These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on．

A．would have been unthinkable	B．would not be unthinkable
C．would be unthinkable	D．would not have been unthinkable

— Anything wrong, sir?
— Yes. It’s one hundred dollars for speeding and driving after drinking. You ______fool me with that smell in your breath．

What do you mean, there are only ten tickets? There__________be twelve