Jawaban :

1. I have gone to Bali more than twice.

- I have not gone to Bali more than twice.

? have I gone to Bali more than twice?.

2. You have listened to that radio program for two hours.

- You have not listened to that radio program for two hours.

? have you listened to that radio program for two hours?.

3. They have studied in the class for three hours.

- They have not studied in the class for three hours.

? have they studied in the class for three hours?.

4. We have discussed this topic the whole semester.

- we have not discussed this topic the whole semester.

? have we discussed this topic the whole semester?.

5. She has cooked delicious meal for her family.

- She has not cooked delicious meal for her family.

? has she cooked delicious meal for her family?.

6. He has practiced to sing for two years.

- He has not practiced to sing for two years.

? has he practiced to sing for two years?.

7. The cat has meowed to his owner the whole morning.

- The cat has not meowed to his owner the whole morning.

? has the cat meowed to his owner the whole morning?.

8. The students of UPGRIS have conducted online learning since last year.

- The students of UPGRIS have not conducted online learning since last year.

? have The students of UPGRIS conducted online learning since last year?.

9. The lecturers of UPGRIS have taught the students well.

- The lecturers of UPGRIS have not taught the students well.

? have The lecturers of UPGRIS taught the students well?.

10. The staff of UPGRIS has welcomed visitors with smile.

- The staff of UPGRIS has not welcomed visitors with smile.

? has The staff of UPGRIS welcomed visitors with smile?.

Penjelasan:

Present Perfect Tense

+ s • have/has • v3 • O/A

- s • have/has • not • v3 • O/A

? have/has • s • v3 •O/A