[ Tenses ]
Which of the following sentences uses the present progressive tense correctly?
A. My friends arrived yesterday.
B. My friends are waiting for me at the airport.
C. My friends will arrive tomorrow.
D. My friends waited for me at the airport.
Select your answer:

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A. have to
B. ‘ve to
C. must
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Choose the role of the appositive phrase in the sentence. My mother loves the music of Patsy Cline, a county singer.
A. identifies a subject
B. identifies the object of a preposition
C. identifies a direct object
D. identifies a predicate nominative
