___________ the man who lost the purse, Mike had to stay there longer.
| A．Not finding | B．Not found | C．Not having found | D．Having not found |
Haveyouheard____news？Thepieceof____petrolisgoingupagain！
| A．the；the | B．the；不填 | C．不填；the | D．不填；不填 |
If a person has not had enough sleep, his actions will give him ___ during the day.
| A．away | B．up | C．in | D．back |
We finished the run in less than half the time ____.
| A．allowing | B．to allow | C．allowed | D．allows |
--- Shall we go out for a walk?
--- Sorry. This is not the right ____ to invite me. I am too tired to walk.
| A．moment | B．situation | C．place | D．chance |
What a pity! Considering his ability and experience, he ____ better.
| A．need have done | B．must have done |
| C．can have done | D．might have done |