Jawaban:

3. [-] The teacher doesn't always teach the students.

[?] Does the teacher always teach the students?

4. [-] The secretary isn't a beautiful girl.

[?] Is the secretary a beautiful girl?

5. [-] The president is in Medan.

[?] Is the president in Medan?

Penjelasan:

Kalimat tersebut menggunakan Simple Present Tense, dengan rumus umum:

• Untuk kalimat verbal (menggunakan kata kerja)

[+] S + V.1 + ...

[-] S + do/does + not + V.1 + ...

[?] Do/Does + S + V.1 + ...

Selain itu, apabila subjeknya menggunakan 3rd person singular subject (subjek tunggal orang ketiga), seperti He, She, It, *nama seseorang*, dan lain-lain, maka kata kerja (verb) menggunakan akhiran -s, -es, atau -ies pada kalimat positif.

• Untuk kalimat nominal (tidak menggunakan kata kerja/verb)

[+] S + to be (is/am/are) + ...

[-] S + to be (is/am/are) + not + ...

[?] To be (is/am/are) + S + ...

Semoga membantu!