Предмет: Биология, автор: vikanesin7

головний метод дослідження клітин?

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Автор ответа: velikanovaviktoria74

1

МЕТОДИ ДОСЛІДЖЕННЯ КЛІТИН: МІКРОСКОПІЯ Світлова (оптична) мікроскопія Завдяки серії лінз, крізь які проходить світло, світловий мікроскоп забезпечує оптичне збільшення об'єктів максимум у 1000 разів.

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Предмет: Английский язык, автор: nadyshadikova

Помогите решить пожалуйста) Заранее огромное спасибо)
Ex. 24. Fill in during or while.

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Model: (talk - ring) While we ______ to John the phone ____ While we were talking to John the phone rang

1. (see - wait) I ______ an accident while I ______ for my train. 2. (get - fall) A young man ____ off the train when suddenly he ______ onto the platform. 3. (run - lie) Several people ___ over to help him because he ____ still ____ there when the train left. 4. (be - examine) A woman who said she ____ a doctor _____ him when my train arrived. 5. (leave - sit) I looked out of the window and just as my train ____ the young man _____ up. 6. (bake - go) I ______ a cake when the light ______ out. 7. (look - come) While I ______ for some candles the light _______ on again. 8. (have to - wait) I _____ finish the cake quickly because my friends ____ for it. 9. (be - give) It _____ a birthday cake, and one of my friends ______ a birthday party at his house. 10. (put - ring) I ______ the cake into a bag when the doorbell ______. 11. (go - stand) I _____ to the door and opened it. Two of my friends _______ at the front door.

TEST YOURSELF

Past Simple or Past Progressive? Both or one of them? Open the brackets, use the right form of the verb.

A

1. I ______ a meal when the light ______ out. I had to stop.

(a) made ...was going (b) made ...went (c) was making ...went

2. He ______ at his watch. The seconds hand _______

(a) has looked ...did not move (b) looked ...was not moving (c) looked ...has not moved

3. When we got to London, it ______ and cars _______ very carefully.

(a) was snowing ...were driving (b) has snowed ...drove....(c) snowed ...were driving

4. When I _____ at the party, June _______ so we only had time for a short talk.

(a) arrived ...was leaving (b) arrived ...left (c) was arriving ...left

5. I _____ to phone you but I _______.

(a) went ...forgot (b) was going ...was forgetting (c) was going ...forgot

B

1. (be - arrive) It _____ a stormy night when Jenny ________ at Norwich Station. 2. (rain - blow) It _______ hard and a strong wind 3. (remember - not have) As she got off the train she ____ that she _____ an umbrella. 4. (go - phone) So she ______ into the station and _______ her friend Paul. 5. (get - ring) Paul ______ into the bath when the phone _____. 6. (hear - get) As soon as he ________ the phone, Paul _______ out of the bath. 7. (take - wrap) He ______ a towel and ______ it round his waist. 8. (want - ring) Just as Paul ______ to pick up the phone, the doorbell _______. 9. (drop - walk) He ______ the phone on a chair and _______ to the door of his flat. 10. (go - hear) He ____ just ____ into the hall when he ____ the sound of water on the bathroom floor. 11. (run - turn) He _____ into the bathroom and _____ the water off. 12. (open - stand) Then he ______ the front door. His friend Stan _____ in the rain. 13. (tell - come) “Hi, Paul,” said Stan. “Is Jenny here yet? She ______ me she _______ to visit you.” 14. (be - ring) “Perhaps that ______ her on the phone,” said Paul. “I wanted to answer the phone when you ______ the doorbell. Come in.” 15. (walk - pick) He ______ back into the living-room, but when he ______ up the phone, there was no one there. 16. (be) Jenny ___ already on her way to the flat in

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