[ Grammar ]
They study English grammar very ….
A. serious
B. seriously
C. seriousing
D. by serious

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Much, many, a lot of, a few, a little › ViewCacti don’t need ____ water.
A. a lot of
B. many
C. much
D. a few
Relative Clauses › View
The number of foreign students ______________________ want to learn Korean is gradually increasing
A. which
B. that
C. for
D. while
Modal Verbs › ViewThis book is torn and dirty. It ___ be new.
A. must
B. might
C. can’t
Grammar › View
We took …………taxi to ……….airport.
A. the/a
B. a/the
C. Ø / the
D. the / Ø