He doesn't understand you if you(whisper).....

Cách làm:
1. Đưa động từ "whisper" về dạng phủ định "don't whisper".
2. Chia ngôi động từ "understand" theo đúng ngôi của đại từ "you".

Câu trả lời:
- He doesn't understand you if you don't whisper.

hoặc

- If you don't whisper, he doesn't understand you.

When you whisper, he can't understand you.

When you whisper, he doesn't understand you.

If you whisper, he can't understand you.

If you whisper, he doesn't understand you.