The scientists ________ on this project try to find the solutions to air pollution.
Cập nhật ngày: 29-05-2022
Chia sẻ bởi: Nguyễn Đăng An
The scientists ________ on this project try to find the solutions to air pollution.
A
working
B
worked
C
are working
D
who working
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goodbye
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hello
C
greeting
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touch
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feel
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take
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custom
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customer
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tradition
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customs
B
tradition
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A
speak
B
talk
C
say
D
address