It’s reported that one thousand people are affected by the H1N1 flu virus in that area , two hundred and fifty-five children ____.
We have done things we ought not to have done and ________ undone things we ought to have done.
The two ladies are ________ the same age, but there seems to be ten years ________ them.
The train ________ arrive at 11∶30, but was an hour late.
While building a tunnel through the mountain, ________ .
I planned ________ to see you last week, but I was ill.