A、They are here with us now because they took the early train. B、They wanted to be with us, so they took the early train. C、They

6. They would have been here with us by now, if they had caught the early train.
7. Despite all the evidence Monica had gathered, Mark refused to admit that she was right.
8. The balance in your bank account is 15,000 dollars only, and so this check in the amount of 20,000 dollars has to be bounced.
9. Bill Gates didn’t finish his undergraduate study, therefore some young students fantasize that they can also become millionaires if they drop out.
10. Demand for specialized technical skills has long exceeded the supply of native-born workers with advanced degrees, and scientists and engineers from other countries fill this gap.