[ Grammar ]
That _______ be Mike calling. He’s in Italy.
A. should
B. must
C. might
D. can’t

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Vocabulary › ViewReplace the capitalized words in the sentence below with its best synonym:
The labor union strikes continue to CAUSE WORRY because they obstruct traffic and create noise.
A. harbor
B. delight
C. heighten
D. agitate
Grammar › View
We ________virtual classes these days.
A. attends
B. are attending
C. were attending
D. attended
What is the preposition?
Over the years we have learned to study
hard.
A. the
B. have
C. to
D. over
Vocabulary › View
something that needs great mental or physical effort in order to be done successfully
A. easy
B. challenge
C. win
D. hard
