----- How did you do in the test ?----- Not so well. I ______ much better but I misread the directions for Part D.A. could have done B. could do C. must have done D. should do
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.
Although he is very young, he is much more experienced than others _____ working ability.