С.образец: i`ve never seen a tree with shoes. but once i saw a shoe in a treesee) 1) i`ve never heard a dog speak spanish. but once i a dog at the circus who could count.(see) 2) i`ve never been to the moon. but once i the whole night in a cave.(spend) 3) i`ve never eaten frog soup. but once i a big green frog.(catch) 4) i`ve never danced with a butterfly. but once i the role of a butterfly.(perform)

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1. saw

2. spent

3. caught

4. performed

1.The reporter noted there was a serious lack of resources available to us then

2.They admitted the earth was over populated then.

3.Anna said to ride a bike was good for the environment and great for our health.

4.Scientist warn oil spills damage the prime source of water for various cities marine life and even affect birds /Обратите внимание, здесь главное предложение в настоящем.

5.Our teacher explained to us that many chemicals destroyed the ozone layer because they interacted with ozone.

6.A famous ecologist said the use of nuclear energy had led to the threat.

7.The author of the article stated the high amounts of air pollution were caused by the development of several industries and water pollution.

9.I asked myself what the ingredients of these cleaning products were.

Объяснение:

I love travel. Travel gives us a good chance to see foreign countries, experience their culture, visit many great and famous places and meet interesting people. Probably, can not find a man, who would not like travelling. It's so interesting, as if you are immersed in another world where everyone speaks in different language, are unfamiliar to us clothes, and even think differently. I've always wanted to travel, and that's true! During the summer holidays I went to the Sunny city of Tashkent . We arrived late in the night, and from the window of the plane could enjoy the view of the night Tashkent. Upon arrival at the airport, we were met by a guide who accompanied us to the hotel. The rooms were very cozy, and the service was great. We were very tired after a long flight, so the first thing decided a good night sleep. Within a few days, we visited most of the sights of the city. Everything was wonderful: we ate in restaurants, tried food and drinks, walked around the shops. We walk in the Park. Like all good things, our holiday came to an end. On the way home, everyone was pleasantly tired. I'm really glad that I had the opportunity to visit this wonderful city .