[ Grammar ]
You _____ be more attentive unless you want to be fired.
A. must
B. can’t
C. have
D. shall
Select your answer:
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Vocabulary and Grammar › View. What is the main purpose of “Aim for the Stars”?
A. to persuade the reader
B. to describe a problem
C. to entertain with a story
D. to tell how to do something
Vocabulary › View
What does the word “efficient” mean?
A. Being effective without wasting time, effort, or expense
B. Being slow and careful
C. Being expensive and time-consuming
D. Being ineffective and wasteful