| 1. | He wondered what his antagonist was doing .
他不知道他的敌手在做些什么。 |
| 2. | He didn't know that the atom bomb would work .
他不知道原子弹能解决问题。 |
| 3. | He doesn't know whether it's paperd .
有没有出过债据他不知道。 |
| 4. | At the time, he had had no idea where to begin .
那时候他不知道从何处下手。 |
| 5. | He does not know whether to go or not .
他不知道去还是不去。 |
| 6. | He didn't know that she was sitting on two chairs .
他不知道她是脚踩两只船。 |
| 7. | He does n't know where he is .
（英）他不知道他自己的立场。 |
| 8. | He had no knowledge of what a fatal dose might be .
他不知道致死的剂量是多少。 |
| 9. | He does n't know where he is at .
他不知道他自己的立场。 |
| 10. | He does not know why he failed .
他不知道他为什么失败。 |
