根据句意及首字母提示在横线处填上恰当的单词，使句子意思完整，语法正确。
1. The desserts are very delicious. Have you t_______ them?
2. The price of the car is i_______ so fast that I can't afford it.
3. He is a v_______, so he eats mainly vegetables.
4. —How well Mary sings!
—Yes. She has a s_______ voice.
5. Be careful when you cross the m_______ road because there are many people and cars on it.
6. Lei Feng, a great soldier, will live in everyone's h_______ forever.
7. You can't e_______ to learn a foreign language in two months. That's impossible.