No sooner______ themselves in their seats in the hall than the speaker began his speech.
When he the door, he found his keys were nowhere.
Every evening after dinner, if not from work, I will spend some time walking my dog.
The loss has not yet been ______ accurately, but it is believed to be well beyond a hundred million dollars.
—Why does the lake smell terrible? —Because large quantities of water in the lake .
John plays basketball well, _______his favorite sport is badminton.