[ Verbs & Phrasal Verbs ]
Your flight is at 3 o’clcock, so you’ll need to _____________ an hour before.
A. check in
B. check up
C. check out
D. check down
Select your answer:
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Adverb Clauses › ViewYou must use a ______ if the adverb clause is at the beginning of the sentence.
A. period
B. semicolon
C. comma
D. conjunction
Tenses › View
Tom______ to Hanoi before.
A. is never
B. had never been
C. was never
D. has never been