twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
So seriously _____ in the accident that he was sent to hospital at once.
When we climbed up to the top of the mountain, we were all ___________.
I wondered what difficulty he had _________ the plan?
My friend, David, was not used __________ by air, so he felt unwell.
The naughty boys would play ______trick on ______ neighbours who didn’t give them any sweets on Halloween.