By the time the boss ____________, her employees ____________ all the preparation.
A. will arrive; will complete
B. arrives; complete
C. has arrived; have completed
D. arrives; will have completed

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Will vs Verb InfinitivesGrammar and Sentence StructureGrammar and Sentence CorrectionVerb Tenses (Progressive, Perfect)Articles - rulesInfinitive GerundThe Simple Present TensePhrasal Verb & Prepositional PhraseVerb to Be Tenses & Object PronounModal VerbOther quiz:
Grammar › ViewWhat is the appositive phrase in the following:
In It’s a Wonderful Life, one of the most popular movies ever made, a character named Clarence wants to get his wings.
A. , one of the most popular movies ever made,
B. , a character named Clarence wants to get his wings.
C. In It’s a Wonderful Life, one of the most popular movies ever made,
D. In It’s a Wonderful Life,
Grammar › View
“Jon is an old friend of _______. Both of us graduated from the same college,” Mother told Uncle Tan.
A. his
B. hers
C. mine
D. theirs
Past Simple (to be) › ViewToday, you …… the best student.
A. are
B. was
C. were
D. is
Grammar › View
A key is a thing … you use to open the doors.
A. who
B. where
C. which
