Jawaban:

4.

a. examination is being prepared by her now

b. a kite is made by me everyday

c. badminton will be played by him tomorrow

5. a. (-) they don't buy a book in the bookstore

(?) do they buy a book in the bookstore?

b. (+) he borrows this book in the library

(-) he doesn't borrow this book in the library

Penjelasan:

nomor 4 itu materi tentang kalimat pasif tenses simple present, present continuous, dan modal. kalau yg nomor 5 itu materi tentang simple present tense. dipelajari lagi ya materinya