7.

Think-thought-thought.

Drink-drank-drunk.

Sit-sat-sat.

Lose-lost-lost.

Have-had-had.

Hear-heard-heard.

Sleep-slept-slept.

Find-found-found.

Say-said-seen.

Fly-flew-flown.

Read-read-read.

Give-gave-given

Tell-told-told.

Take-took-taken

Understand-understood-uonderstood.

Come-came-come.

Get-got-got.

Wear-wore-worn.

Forget-forgot-forgotten.

8.

1)never

2)lately

3)ever

4)yet

5)recently

6)lately,  yet

7)already.

9.

1)Have you played tennis recently?

2)Have you got an excellent mark lately?

3)Have you bought a new textbook lately?

4)Have you heard from your grandparents recently?

5)Have you travelled recently?

6)Have you worked hard lately?