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YOU HAD BETTER HAVE YOUR TEETH ________ ONCE A YEA...
YOU HAD BETTER HAVE YOUR TEETH ________ ONCE A YEAR
BAI TAP TRAC NGHIEM HKI I GV
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29. You had better have your teeth ________ once a year.A. check B. to check C. checking
D. checked
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29.
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BAI TAP TRAC NGHIEM HKI I GV