---Has your father returned from Africa yet?
---Yes, but he _______here for only three days before his company sent him to Australia.
| A．was | B．has been | C．will be | D．would be |
Before driving into the city, you are required to get your car ____.
| A．washed | B．wash | C．washing | D．to wash |
John has really got the job because he showed me the official letter _____ him it.
| A．offered | B．offering | C．to offer | D．to be offered |
Time, ______ correctly, is money in the bank.
| A．to use | B．used | C．using | D．use |
After completing and signing it, please return the form to us in the envelope _____.
| A．providing | B．provided | C．having provided | D．provide |
_______ with care, one tin will last for six weeks.
| A．Use | B．Using | C．Used | D．To use |