______ twice, the postman refused to deliver our letters unless we chained our dog.
| A．Being bitten | B．Bitten | C．Having bitten | D．To be bitten |
____ such a chance, why don't you have a try ?
| A．To give | B．Given | C．Having given | D．Giving |
My father _____ away for two months．I want to do something special for him when he comes back next week．
| A．will be | B．has been | C．was | D．had been |
If our time is usefully employed, it will _____ some useful and important products．
| A．turn out | B．refer to | C．look up | D．carry on |
—I got promoted a few days ago．
—You did? _____!
| A．Thank you | B．Never mind | C．Congratulations | D．Don't worry |
The WTO can't be called _____ "world" organization without ____ world’s largest nation-Russia．
| A．the; a | B．a; a | C．the; the | D．a; the |