26. 62% of the people surveyed said they always avoided _____________their smartphones during meals.
A)use
B) using
C)to use
D) used
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27. The HR department is a critical part of employee well-being in any business, no matter_____________small it is.
A)how
B) what
C)where
D)which
28.According to the regulation, inspections ___________to ensure that the systems are in good condition.
A)demanded
B) have demanded
C) be demanded
D) are demanded
29. Before you think about asking for a promotion, make sure that either a position opening exists _____________a new position is needed to be created.
A)and
B) nor
C)or
D)but
30. The traffic was making so much noise that I couldn't hear what he_____________.
A) is saying
B) was saying
C) has said
D)will say