21.It was not until dark ____ he found ____ he thought was the correct way to slove the problem.
He accidentallyhe had quarreled with his wife and that he hadn't been home for a couple of weeks.
We have tothe wheat as soon as possible because a storm is on the way
I don’t _________ rock ’n’ roll. It’s much too noisy for my taste.
I have always been honest and straightforward, and it doesn’t matter ______ I’m talking to.
A modern city has been set up inwas a wasteland ten years ago .