Jawaban:

1. Indikator simple present tense per paragraf:

"is designed"

"keeps working"

"are designed"

"has various"

"display"

"are also equipped"

"incorporate"

"use"

Indikator simple present tense per baris:

"A watch is a small timepiece intended to be worn by a person and it is designed to keep working despite the motions caused by the person's activities."

"Some watches are designed to be worn around the wrist, attached by a watch strap or other type of bracelet."

"Other watches are designed to be placed in someone's pocket."

"A watch has various extra features, called "complications", such as moon-phase displays and the different types of tourbillion."

"Modern watches usually display the day, date, month, and year."

"Time-related features such as timers, chronographs are also equipped the watches."

"Some other modern designs incorporate calculators, GPS and Bluetooth technology or have heart-rate monitoring capabilities."

"In order to correct the time automatically, some watches use radio clock technology."

2. Kalimat passive voice per paragraf:

"is designed to be worn by a person"

"is designed to keep working"

"are designed to be worn around the wrist"

"are designed to be placed in someone's pocket"

"is equipped with"

"are incorporated"

"is used"

Kalimat passive voice per baris:

"A watch is a small timepiece intended to be worn by a person and it is designed to keep working despite the motions caused by the person's activities."

"Some watches are designed to be worn around the wrist, attached by a watch strap or other type of bracelet."

"Other watches are designed to be placed in someone's pocket."

"A watch has various extra features, called "complications", such as moon-phase displays and the different types of tourbillion."

"Modern watches usually display the day, date, month, and year."

"Time-related features such as timers, chronographs are also equipped the watches."

"Some other modern designs incorporate calculators, GPS and Bluetooth technology or have heart-rate monitoring capabilities."

"In order to correct the time automatically, some watches use radio clock technology."

3. Kalimat active voice per paragraf:

"keep working"

"designed"

"attached"

"has various"

"display"

"equipped"

"incorporate"

"use"

Kalimat active voice per baris:

"A watch is a small timepiece intended to be worn by a person and it keeps working despite the motions caused by the person's activities."

"Some watches are designed to be worn around the wrist, attached by a watch strap or other type of bracelet."

"Other watches are designed to be placed in someone's pocket."

"A watch has various extra features, called "complications", such as moon-phase displays and the different types of tourbillion."

"Modern watches usually display the day, date, month, and year."

"Time-related features such as timers, chronographs are also equipped the watches."

"Some other modern designs incorporate calculators, GPS and Bluetooth technology or have heart-rate monitoring capabilities."

"In order to correct the time automatically, some watches use radio clock technology."

Perlu diingat, kalimat passive voice dalam paragraf tersebut hanya terdapat "is designed" dan "is equipped" yang tidak memiliki subject yang jelas. Namun, kedua kalimat tersebut tidak dapat dikatakan sebagai kalimat active voice karena tidak menunjukkan siapa yang melakukan aksi tersebut.