| A | B |
| I ___________ volleyball yesterday. | played |
| I _________________ squash. | have never played |
| I ______________ him for six weeks. | have known |
| I _________ him when I was young. | knew |
| The London Underground ______________ in 1922 | was built |
| A new line __________________ recently. | has been built |
| He _________ his father last week. | saw |
| She ____________ her father for two months. | hasn't seen |
| I __________ my homework. | have done |
| I ___________ the exercise this morning. | did |