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

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Modal Verbs of PermissionAdverbial Clause / If / ComparativesTime and CalendarMust Vs Have toExclamationGrammar Error Correction (Simple Present Tense)Grammar Like & Linking VerbDo not- Does notIndefinite and Definite ArticlesDefinite and Indefinite ArticlesOther quiz:
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