Final answer:
The correct past tense form of the verb 'to experience' for the sentence is 'experienced.' When events are described as having already taken place, the simple past tense should be used to reflect that time frame. The correct answer is option d.
Step-by-step explanation:
The correct past tense form of the verb to experience that would fill in the blank in the sentence 'I _____ a lot of great things on my trip abroad last summer' is 'experienced.' Therefore, the appropriate sentence is 'I experienced a lot of great things on my trip abroad last summer.'
In English, the simple past tense is often formed by adding '-ed' to the base form of the verb. However, it is also important to recognize irregular past tense forms. For example, 'feel' becomes 'felt' rather than 'feeled.'
When describing events that have already taken place, especially within a narrative that is being communicated in the past tense, verbs should consistently reflect that timeframe. Using the simple past tense 'experienced' correctly indicates that the actions occurred in the past and are now complete.