By the time you arrive, I _____ for three hours.
A. will work
B. am working
C. had been working
D. will have been working

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Grammar ClausesPast Simple & Past ContinuousFuture Perfect ContinuousAdverb ClausesFor vs SinceComparative AdverbPresent Perfect Negative and InterrogativeQuantifiers, Countable and Uncountable Nouns“Put” Phrasal VerbAdjective, Adverb, and Noun FormsOther quiz:
Grammar › ViewBy the time Laura arrived, the movie _________.
A. has already started
B. had already started
C. has already been started
Grammar › View
This is the cook _____ is famous for his beef dishes. You can often see him on TV.
A. be
B. which
C. who
D. where
Mixed General Quiz › ViewIn most cases, the spouse and dependents get everything that is left, including _____ items after taxes are paid. If there is no family or relatives, the government gets it.
a. personal
b. personnel
Mixed General Quiz › View
One of ___ is held in Detroit in January every year. It is called the Detroit International Automotive Car Show.
a. the most famous car show
b. a famous car show
c. the most famous car shows
