Jawaban:

Modals:

1. I must have dropped it somewhere.

2. It mustbevery noisy.

3. She must have gone to the cinema a lot.

4. Somebody must have stolen it.

5. He must be at least 40 years old.

6. I must have been asleep.

7. You must be looking forward to it.

8. There must have been an accident.

9. You must have heard it before.

10. He must have been stalking us.

II.

1. Have you been playing tennis?

2. Look! Somebody has broken that window.

3. You look tired. Have you been working hard?

4. Have you ever worked in a factory?

5. Where has she gone to?

6. He has appeared in several films.

7. I haven't waited for long.

8. No, it has stopped.

9. I have lost my phone. Have you seen it anywhere?

10. I have been reading the book you lent me, but I haven't finished it yet.

11. I have read the book you lent me, so you can have it back now.

12. This is a very old book. I have had it since I was a child.

Penjelasan:

Jawaban dicetak tebal dan merupakan materi pembelajaran Modal Verbs (kata kerja Modals) dan Tenses (kala) yaitu Present Perfect Tense yang menjelaskan aktivitas kegiatan yang sudah dilakukan dan Present Perfect Continuous Tense yang menjelaskan aktivitas kegiatan yang sudah dimulai dan sedang masih berlangsung hingga saat ini.

Modal Verbs (Must):

(+) Subject + Must + Verb-1 + Object

(+) Subject + Must + be + Verb-ing + Object

(+) Subject + Must + Have + Verb-3 + Object

(+) Subject + Must + Have + Been + Verb-ing + Object

Present Perfect Tense:

(+) Subject + Have/Has + Verb-3 + Object

Present Perfect Continuous Tense:

(+) Subject + Have + Been + Verb-ing + Object

Semoga membantu ya.