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I will come back in ___ hour.
A. a
B. an
C. the
D. X

Random Topics:
Auxiliary Verbs (be, do, have)Wish, Unless, If sentenceVocabulary & Phrasal VerbCollective NounsFuture Tense VerbGerunds, Infinitives and Modals of PossibilitySingular and Plural NounsPast Tense and Past ContinuousWish + Verb 2Present Tense (Negatives and Questions)Other quiz:
Phrase and Clause › ViewWe must not complain about the problem.
How many clauses are in the sentence?
A. 1
B. 2
C. 3
D. 4
Grammar - help/have/let/make › View
I ______ the mechanic (維修員) fix my car.
A. had
B. make
C. let