Jawaban:

1. (+) It is cooling outside.
   (-) It is not cooling outside.
   (?) Is it cooling outside?
   Yes, it is./No, it is not.
2. (+) My father and mother are singing together.
   (-) My father and mother are not singing together.
   (?) Are my father and mother singing together?
   Yes, they are./No, they are not.
3. (+) She is reading at the library.
   (-) She is not reading at the library.
   (?) Is she reading at the library?
   Yes, she is./No, she is not.
4. (+) Her brother is selling handphone.
   (-) Her brother is not selling handphone.
   (?) Is her brother selling handphone?
   Yes, he is./No, he is not.
5. (+) The bell is ringing for break time.
   (-) The bell is not ringing for break time.
   (?) Is the bell ringing for break time?
   Yes, it is./No, it is not.
6. (+) You are winning the game.
   (-) You are not winning the game.
   (?) Are you winning the game?
   Yes, I am./No, I am not.

Penjelasan:

• Untuk mengubah kalimat positif menjadi kalimat negatif, kita hanya perlu menambahkan "not" setelah kata kerja. Untuk mengubah kalimat positif menjadi kalimat tanya, kita hanya perlu memindahkan kata kerja atau kata bantu ke depan kalimat dan menambahkan tanda tanya di akhir kalimat. Jawaban untuk kalimat tanya dapat dijawab dengan "yes" jika jawaban positif atau "no" jika jawaban negatif.