1.Where (has,have) they gone for their picnic?

2.(Has, Have) Hiromi opened her birthday presents?
3.Where (has,have) she put the other gifts?
4.(Has,Have) her friends seen her other presents yet?
5.(Has,Have) I shown you how to play this game?
6.(Was, Were) we late for the party?

1.have
2.has
3.has
4.have
5.have
6.were

Can you tell me if these are correct?

All are correct. Nice!

Yes, you are correct! Here's an explanation for each question:

1. To determine whether to use "has" or "have," we need to identify the subject of the sentence. In the first question, "they" is the subject, which is plural. Since the subject is plural, we use "have" instead of "has." Therefore, the correct answer is "have."

2. In this question, the subject is "Hiromi." Since "Hiromi" is a singular noun, we use "has" instead of "have." Therefore, the correct answer is "has."

3. Similar to the first question, the subject in this sentence is "she," which is a singular pronoun. Hence, we use "has" instead of "have." Therefore, the correct answer is "has."

4. The subject in this question is "her friends," which is plural. Therefore, we use "have" instead of "has." Hence, the correct answer is "have."

5. In this question, the subject is "I," which is a singular pronoun. Since it is singular, we use "have" instead of "has." Therefore, the correct answer is "have."

6. The subject in this sentence is "we," which is plural. Hence, we use "were" instead of "was." Therefore, the correct answer is "were."