His technique has developed to the point _____ he can help kill the latest computer virus going round the city.
If the new arrangement doesn’t _____, we’ll go back to the old one.
All the girls swam in the lake except two, who _____ halfway.
To our surprise the stranger _____ to be an old friend of my mother’s.
I asked the boss for a month’s holiday and, _____ it or not, he agreed.
By the time you arrive home, I ____, so please don’t make any noise when you come in.