“If I ________ taking drugs, I would be a successful businessman now,” said the dying drug addict.
| A．didn’t start | B．haven’t started | C．hadn’t started | D．shouldn’t start |
--- I don’t know ___________ makes her different from others.
--- Confidence, I think.
| A．how is it that | B．how it is that |
| C．what is it that | D．what it is that |
Ten years ago the population of our village was _________ that of theirs.
| A．as twice large as | B．twice as large as |
| C．large as twice as | D．as twice as large |
Friends are like leaves, ________ everywhere, but true friends are like diamonds, precious and rare.
| A．found | B．finding | C．to find | D．being found |
Simply learn to live in the present, ________ think so much about the future or the past.
| A．rather than | B．other than | C．more than | D．less than |
--- How much shall I pay for the phone call?
--- You ________. This is free of charge.
| A．shouldn’t | B．can’t | C．don’t have to | D．mustn’t |