| 1. | The verb is in the perfect .
那动词是完成式。 |
| 2. | We must admit the task to be difficult
后可接动名词的一般式或完成式 |
| 3. | Present continuous and present perfect passives with prepositions of cause
现在进行式和现在完成式 |
| 4. | He is often heard to sing the song
不定式的进行式和完成式。 |
| 5. | The imperfect subjunctive is used in purpose and result clauses
假设语气未完成式动词用于目的子句和结果子句。 |
| 6. | The verb is in the perfect
那动词是完成式 |
| 7. | Past and past participles
过去或过去完成式 |
| 8. | The imperfect subjunctive must be viewed a little different than other tenses
假设语气未完成式动词和其他时式稍有不同。 |
| 9. | The perfect tense
完成式完成时态 |
| 10. | Although we have been working in the same office for several ages , she _ _ _ me much impression
是现在完成式，在这几天里她没有给我留下印象。 |
