Сусловными предложениями (. яз). надо раскрыть скобки. нужно ,вопрос жизни и if it (be) a lot of wind tomorrow, the airport will be shut if it (not be) a lot of wind, the airport would be open now if it (not be) a lot of wind yesterday, the airport wouldnt have been shut. if only dogs could speak , they probably (tell) us much interesting if you were sad and depressed, you (talk) to your friend? if you hadnt got lost during the excursion, we (ask) the guard to help us if someone ( criticize) you, you usually (start) to quarrel. if you (not insist) on visiting the art gallery yesterday, i (lose) much. if you (want) this ring , i (buy) it to you tomorrow. if i (know) medicine ten years ago as well as i know it now , i (can help) that man if he ( find) us, he (be) angry

If it is a lot of wind tomorrow, the airport will be shut
If it wasn't a lot of wind, the airport would be open now
If it hadn't been a lot of wind yesterday, the airport wouldnt have been shut.
If only dogs could speak , they probably would tell us much interesting
If you were sad and depressed, would you talk to your friend?
If you hadnt got lost during the excursion, we would have asked the guard to help us
If someone criticizes you, you usually will start to quarrel.
If you hadn't insisted on visiting the art gallery yesterday, i would have lost  much.
If you want this ring , i will buy it to you tomorrow.
If i knew medicine ten years ago as well as i know it now , i would can help that man
If he finds us, he will be angry