—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 |
When we saw his face, we knew _____ was bad.
| A．the news | B．some news | C．a news | D．news |
Biology is _____.
| A．science of life | B．science of the life | C．the science of the life | D．the science of life |
_____ of them knew about the plan because it was secret.
| A．Some | B．Any | C．No one | D．None |
"How many elephants did you see?" "_____".
| A．None | B．No one | C．Not many ones | D．No many |
I remember _____ word he said that day.
| A．all | B．both | C．each | D．every |