Mom believes that those words put to paper two centuries ago really _____ something.
| A．mean | B．represent | C．tell | D．say |
When he the door, he found his keys were nowhere.
| A．would open | B．opened | C．had opened | D．was to open |
Every evening after dinner, if not from work, I will spend some time walking my dog.
| A．being tired | B．tiring | C．tired | D．to be tired |
The loss has not yet been ______ accurately, but it is believed to be well beyond a hundred million dollars.
| A．calculated | B．considered | C．completed | D．controlled |
—Why does the lake smell terrible?
—Because large quantities of water in the lake .
| A．have polluted | B．is being polluted | C．has been polluted | D．have been polluted |
John plays basketball well, _______his favorite sport is badminton.
| A．so | B．or | C．yet | D．for |