In the market, vegetables are sold by _______ kilogram, I mean, by _______ weight.
I didn’t see your sister at the meeting.If she ___ , she would have met my brother.
If there were no examinations, we should have ___at school.
---Don’t forget to come to my birthday party tomorrow.--_____.
The weather turned out to be very good, ___ was more than we could expect.
We all write ___, even when there’s not much to say.