1. Have the salmon always (swam, swum) in this river?
2.After the sun has (rose, risen) everyone felt better.
3.Grandfather (lay, laid) out a pair of clean pants for you.
4.Thank you, but I have already (ate, eaten) lunch.
5.After a short rest, we (rose, raised) and walked back into the jungle.
6.My mother and stepfather have always (gave, given) me good advice.
1.swam
2.risen
3.laid
4.eaten
5.rose
6.given
They're all correct except # 1. Since the verb "swim" is used with a helping verb, the correct form to use with it is "swum."
http://www.sta.cathedral.org/engVerbs/default.asp
To determine the correct verb form in each sentence, you need to understand the difference between the base form and participle form of the verbs. Here's how you can find the correct answers:
1. Have the salmon always (swam, swum) in this river?
- To find the correct form of "swim," you need to know the base form ("swim") and the past participle form ("swum"). Since the sentence uses "have" as the auxiliary verb, indicating the present perfect tense, you should use the past participle form. Therefore, the correct answer is "swum."
2. After the sun has (rose, risen), everyone felt better.
- Again, "have" is used as the auxiliary verb, indicating the present perfect tense. The base form of "rise" is "rise," and the past participle form is "risen". Therefore, the correct answer is "risen."
3. Grandfather (lay, laid) out a pair of clean pants for you.
- The base form of "lay" is "lay," and the past participle form is "laid." In this sentence, you are describing something Grandfather did in the past, so you should use the past participle form. Therefore, the correct answer is "laid."
4. Thank you, but I have already (ate, eaten) lunch.
- "Have" is again used as the auxiliary verb, indicating the present perfect tense. The base form of "eat" is "eat," and the past participle form is "eaten." Therefore, the correct answer is "eaten."
5. After a short rest, we (rose, raised) and walked back into the jungle.
- "We" is the subject of the sentence, so you need a verb that agrees with it. The base form of "rise" is "rise," and the past participle form is "risen." Since the sentence is talking about people standing up, the correct answer is "rose."
6. My mother and stepfather have always (gave, given) me good advice.
- Once again, "have" is the auxiliary verb, indicating the present perfect tense. The base form of "give" is "give," and the past participle form is "given." Therefore, the correct answer is "given."