[ Sit vs. Set ]
To avoid back pain you should ___ straight.
a. set
b. sit
c. seat
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Modals › ViewError Analysis
Employees can using the company gym during office hours, but they cannot bring guests without prior authorization from the facilities manager.
A. can
B. using
C. cannot
D. bring
Grammar › View
I _________to the movies once a month.
A. go
B. going
C. am going
D. have gone
Grammar › ViewChildren _________ respect their parents.
A. should
B. shouldn’t
C. must
D. mustn’t
Grammar › View
The book is missing ____________________ cover.
A. it’s
B. its