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A scientist says studies like this can prove useful in the fight ______ the COVID-19. A. for
B. with
C. against
D. back 2.
We all know that learning a foreign language well ______ action. or you won't master it well. A. requires
B. receives
C. reduces
D. realizes 3.
My sister seldom spends time on TV or computer at weekends because reading ______ most of her free time. A. takes of
B. takes up
C. takes away
D. takes oft 4.
Everyone makes mistakes, and no one will make progress ______ he is willing to learn from them. A. unless
B. if
C. though
D. but 5.
My elder brother is creative. he is always full of ideas, but ______ is useful to my knowledge. A. neither
B. nothing
C. no one
D. none 6.
--Nowadays people use mobile phones too much.
--I feel ______ the same, we'd better not depend too much on them. A. hardly
B. properly
C. exactly
D. clearly 7.
--China has successf
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