Fill in the prepositions if necessary : Computers are used by more and more people every day for use … home and … the office. Modern desktop computers provide … users with user-input mechanisms that are well suited for the applications that run … these computers. The use of a hand operating pointing device for use with a computer and its display has become almost universal. A computer user manipulates … a pointing device to change the position of a cursor or other object … a computer display, or to select objects … the display. The physical movement … the pointing device results … a similar movement of the cursor and/or object on the display.

1) When my elder sister was a teen, she did a crossword every spare moment. ( Past Simple)

2) It's so hot inthe class. Open the window. (Present Simple)

3) Our mum hopes, I will become a good builder as our dad. (Future Simple)

4) Why are you laughing? - I amtalking about serious things now. (Present Continuous)

5) When does Chris usually arrive home? - He usualle gets home late. (Present Simple)

6) Has she ever ridden on a rollercoaster? - Yes, she has. (Present Perfect)

7) What are you doing this evening?- We are going to the cafe with our friends. (Present Continuous)

8) Did you see John yesterday? -No, I didn't. (Past Simple)

9) My dad has never been to a theme park. We are going there tommorow. (Present Perfect, Present Continuous)

10) If I get excellent mark for English test, my parents will allow me to go to the party at the weekend. ( First Conditional)

11) Look! The woman is carriyng so many books in a small bag. It "ll break in a minute. (Present Continuous, Future Simple)

Объяснение:

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