—John, how did your English exam go?
—I thought I _____, but in fact I came in the top 10% in the class.
| A．should have failed | B．might have failed |
| C．couldn’t have failed | D．mustn’t have failed |
Many people consider it _________, from which a lot of children benefit.
| A．a worth doing cause | B．a cause worth to do |
| C．a worthwhile cause | D．a worthless cause |
---It’s a long time _____ I saw you last.
---Yes, and what a pity it is now that it will be a long time _______ we see each other again.
| A．before; since | B．since; when | C．since; before | D．when; before |
Mr. Green didn’t understand ________ made his daughter so absent-minded this morning.
| A．how that was | B．what was it |
| C．why it was that | D．what it was that |
Two _____ died of cold last winter.
| A．scores of old people | B．score of old people |
| C．scores of old peoples | D．score of old peoples |
Riding bikes has advantages __________ driving cars ________ many aspects.
| A．above; in | B．over; in | C．on; on | D．with; on |