I don't think the experiment is ___ failure, because it has provided us with ___valuable experience for our future tests.
Would you mind coming over tomorrow afternoon?Tomorrow morning,I__________ a meeting.
It is usually warm in my hometown in March, but it be rather cold sometime.
Mary answered all the questions __________the last one, which she had never heard of before.
I've worked with children before, so I know what__________ in my new job.
Get down to the experiment right away if possible,__________ you will not finish it before dark.