In the simple present, use does with he, she, and it, and do with the other subject pronouns. This exercise practices matching the auxiliary to the subject in questions and other sentence patterns.
Choose the correct form — do or does — to complete each sentence.
1. (Do/Does) you speak English?✓
2. If they (do/does) come, I will be very surprised.✓
3. (Do/Does) he always behave like this?✓
4. (Do/Does) they know that you're my sister?✓
5. I (don't/doesn't) know how to cook.✓
6. (Do/Does) your cats play with you?✓
7. You (do/does) understand, don't you?✓
8. Why (do/does) he always wear the same shirt?✓
9. (Do/Does) Australians eat a lot of meat?✓
10. My mother (don't/doesn't) like to travel.✓
11. (Do/Does) David play tennis?✓
12. When he (do/does) call, please tell me.✓
13. (Do/Does) your dog eat a lot?✓
14. (Do/Does) those cookies taste good?✓
15. John (don't/doesn't) dance very well.✓
16. The exercise (don't/doesn't) seem very difficult.✓