1. They haven't called her since 7p.m last week.

2. I haven't driven to work in 2020.

3. He began learning English 5 years ago.

4. She hasn't played game for 2 years.

5. We haven't done the house work since 7.

6. We haven't met him for 2 weeks.

7. They have learnt to swim sice they were 7.

8. I haven't gone out with her before.

9. This is the first time we have been here.

10. It has rained since last week.

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$\text{1.}$ They haven't called her since 7 p.m last week.

$\text{→}$ S + last + Ved/ P1 + time = S + have/ has + Ved/ P2 + for/ since.

$\text{2.}$ I haven't driven to work since 2020.

$\text{3.}$ He began learning E. 5 years ago.

$\text{→}$ began/ started + V-ing = have/ has + Ved/ P2

$\text{4.}$ She hasn't played game for 2 years.

$\text{→}$ The last time + S + Ved/ P1 + time = S + have/ has + not + Ved/ P2 + for/ since

$\text{5.}$ We haven't done the housework since 7.

$\text{6.}$ We haven't met him for 2 weeks.

$\text{7.}$ They have learnt to swim since they were 7.

$\text{8.}$ I haven't gone out with her before.

$\text{→}$ This is the first time + HTHT = S + have/ has + not/ never + Ved/ P2 + before.

$\text{9.}$ This is the first time we have been here.

$\text{10.}$ It has rained since last week.