[ Grammar ]
You ___________ read the washing machine instructions carefully or you will ruin your clothes.
A. can
B. must
C. have to
D. will

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Vocabulary & Grammar › ViewHow _____is the River Thames?
A. long
B. fast
C. much
D. often
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I read a lot of books on subject and this one is … best.
A. –
B. a
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Grammar › ViewA doctor who treats your teeth is
A. Dentist
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Relative Clause › View
Many foods ____ we consume today are all military creations and were first designed for soldiers.
A. that
B. of which
C. where
D. at which