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Key: While + past progressive ( part 1 )

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  • Key: While + past progressive ( part 1 )

    Combine the sentences and add the correct punctuation. Use while.

    1.a.
    We felt an earthquake while we were sitting in our living room last night .

    b. While
    we were sitting in our living room , we felt an earthquake.

    2.a.
    While I was talking to the teacher yesterday , another student interrupted me.

    b.
    Another student interrupted me while I was talking to the teacher yesterday.

    3.a. While
    I was planting flowers in the garden , my dog began to bark at a squirrel.

    b. M
    y dog began to bark at a squirrel while I was planting flowers in the garden.

    4.a.
    A police officer stopped another driver for speeding while we were driving to work.

    b. While
    we were driving to work , a police officer stopped another driver for speeding.

    5.a. While
    I was walking in the forest , a dead tree fell over .

    b. A
    dead tree fell over while I was walking in the forest.

    (Tư liệu tham khảo:
    Betty Schrampfer Azar . Understanding and Using English. 3rd ed.)


    Review exercise
    Sửa lần cuối bởi vip.pro.12; 24-03-2017, 17:17.
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