用括號里的詞匯和短語填空
1. Don't ________ to turn off the gas when you finish cooking.
2. Three years ___________ since Tom came to China.
3. Is everything ________ the party. Our friends are coming soon.
4. If you feel uncomfortable, __________ see a doctor?
5. _______ I'm free, I won’t go swimming. It's too cold.