1. too much carbon dioxide in the air can be =… for humans to breathe. a. poisonous b. unfriendly c. healthy d

Question

1. too much carbon dioxide in the air can be …………… for humans to breathe.
a. poisonous b. unfriendly c. healthy d. poison
2. the new invention could have a wide range of ………………..in industry.
a. applications b. concerns c. goodness d. advance

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Katherine 4 tuần 2021-09-07T07:45:36+00:00 2 Answers 9 views 0

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    0
    2021-09-07T07:47:19+00:00

    1. A

    2. D

    0
    2021-09-07T07:47:20+00:00

    1. too much carbon dioxide in the air can be …………… for humans to breathe.

    a. poisonous b. unfriendly c. healthy d. poison

    2. the new invention could have a wide range of ………………..in industry.

    a. applications b. concerns c. goodness d. advance

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