جواب اینا رو کسی میدونه؟

21- Active: Scientists find solutions to problems. passive: Solutions to problems are found by scientists. 22- D. 23-B. 24-B. 25-C. 26-B. 27-C. 28- would ask. 29- was damaged. 30- Doesn't he ? 31- will she ? 32- When were these expensive houses bought? 33- my brother went to the library,but he didn't study. 34-b. 35-d. 36-C. 37-b. با آرزوی بهترین ها برای شما🌹🙂

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