Why Correct: The construction "would surely go" paired with "if I could" signals a condition that is contrary to fact, and the subjunctive mood expresses such hypothetical or unreal situations.
Distractor Analysis: The indicative mood states actual facts or real events, the interrogative mood forms questions, and the imperative mood issues commands or requests; none of these convey the counterfactual condition present here.
Takeaway: The subjunctive mood frequently appears in "if" clauses and with modal auxiliaries such as "would," "could," and "might" to mark unreality or wishful thinking.

Why Correct: "Have done" combines the auxiliary "have" with the past participle "done," which forms the present perfect tense. This tense expresses a completed action with present relevance, such as "I have done my duty" meaning the duty is finished and its result matters now.
Distractor Analysis: Present Indefinite (simple present) uses the base verb form, as in "I do my duty," and describes habitual or general actions. Past Perfect uses "had" plus the past participle, as in "I had done my duty," and places the action before another past event. Past Indefinite (simple past) uses the past tense form, as in "I did my duty," and refers to a completed action with no connection to the present.
Takeaway: The present perfect also appears with "has" for third-person singular subjects, as in "He has done his duty," and often pairs with time expressions like "just," "already," and "yet" to signal recent completion.

Why Correct: 'Rewind' is an irregular verb, and its past tense and past participle form is 'rewound', following the same vowel-change pattern as 'wind' -> 'wound'.
Distractor Analysis: 'Rewinded' applies the regular -ed suffix, which does not apply to irregular verbs like 'rewind'. 'Rewounded' is not a recognized English verb form; it confuses the past of 'wind' with the unrelated noun 'wound' (injury). 'None of the above' is invalid because 'rewound' is a standard dictionary-listed form.
Takeaway: Irregular verbs often change the internal vowel to form the past tense, as in 'bind' -> 'bound', 'find' -> 'found', and 'grind' -> 'ground'; these pairs share the same -ind to -ound shift.

Why Correct: A definite past time adverbial like 'last night' requires the simple past tense 'went', not the past perfect 'had gone'. The past perfect places an action before another past action, and no second past event exists here.
Distractor Analysis: 'We had had gone' is grammatically impossible because it stacks two auxiliary verbs ('had had') before the main verb 'gone'. 'We should have gone' expresses regret or a missed opportunity, not a simple past fact. 'We have gone' uses the present perfect, which describes an indefinite past action or one with present relevance, and it cannot pair with a specific past time like 'last night'.
Takeaway: The present perfect (has/have + past participle) never co-occurs with definite past time adverbials such as 'yesterday', 'last night', or 'in 2019'; those markers force the simple past. The past perfect (had + past participle) requires a second, later past action for comparison, as in 'We had gone before the rain started'.