. Use the appropriate forms of the verbs in brackets to complete the sentences. 1) It (rain) since morning. When will it stop raining? 2) Nick (go) to the park now. 3) If I (see) him, I (tell) him about their letters. 4) When my friend (come) to see me, I (do) my homework. 5) Alex (meet) his brother two hours ago. 6) I did not know what she (speak) about.

Fast food is perhaps the quickest way to satisfy your hunger. But according to many experts, fast food can cause serious illnesses: obesity, gastritis, indigestion, pancreatitis, etc. You can hardly find a person who never heard about global fast food chains, such as McDonald’s, Subways, Burger King and so on. Nowadays, fast food industry is one of the most flourishing businesses all over the world. It comes as no surprise, fast food restaurants enjoy wide popularity among average people. It takes you just a few minutes to satisfy your hunger. At any time you have a good choice of magnificent burgers, chips of different tastes, delicious pizzas, and fizzy drinks. Popular music you can always hear in these restaurants makes you feel relaxed and happy. Many people take their children to these places. But many nutritionists insist that you must not eat in fast food restaurants every day. The most forcible argument is that fast food contains lots of fat and preservatives and no healthy ingredients. Fast food producers use trans fat that keeps its freshness for a long time and prevents spoilage of food. Few people know that trans fat is very injurious to health. It is the cause of such diseases as myocardial ischemia, cancer, nervous disorder, sterility, diabetes. What is more, in fast food restaurants we order a lot of fizzy drinks like Coke, Pepsi, Sprite and others. On the one hand, these drinks are very tasty, on the other hand, they are very unhealthy. For example, one little can of cola contains 10 teaspoons of sugar – a maximum dosage for one day. No wonder cola-lovers are so corpulent. To sum it up, fast food is an easy solution for people on a busy day. But we should not eat it too much. Every time we drop into fast food restaurants we’d better order vegetable or fruit salads. And it goes without saying that one cup of green tea is much better that a can of cola. Food may heal or kill you. It’s up to you.

1. It (is) ... a cool autumn day. The wind (is blowing) ... and the leaves (are falling) ... to the ground.
2. My roommate (eats) ... breakfast at exactly seven o'clock every morning. I usually (don't eat) breakfast at all. What time (do you eat) in the morning?
3. A: (Do you shop) ... at this store every week? B: No I usually (shop) ... at the store near my apartment. A: Why (are you shopping) ... here now? B: I (am trying) ... to find something special for my father's birthday.
 4. A: Flowers! Flowers for sale! Yes, sir! Can I help you? B: I'll take those - the yellow ones. A: Here you are, mister. Are they for a special occasion? B: I (am buying) . them for my wife. I (buy) ... her flowers on the first day of every month.
5. A: I like to read. How about you? (Do you read) . a lot? B: Yes, I (read) . at least one novel each week, and I (subscribe) ... to several magazines. And I always (look) . at the newspaper during breakfast.
6. A: Knock, knock! Anybody home? Hey, Bill! Hi! It's me. Where are you? B: I (am) . in the bedroom! A: What are you doing? B: I (am trying) ... to sleep! A: Oh. Sorry. I won't bother you. Tom, shhh. Bill (is resting) .
7. Before you begin to study, you should ask yourself two questions. First, "Why (am I studying) ... this subject right now?" Second, "What (do I want) . to learn about this topic?" Students (need) . to understand the purpose of their study.
8. In cold climates many trees (lose) ... their leaves in winter. They (rest) . for several months. Then they (grow) . new leaves and flowers in the spring. Some trees (keep) . their leaves during the winter and (stay) . green all year long. In some regions of the earth trees (don't grow) . any leaves. (Do trees grow) . on all of the continents in the world?