[ Grammar ]
The customers can relax, and have a drink while they wait …….. the robot to do their shopping.
A. of
B. under
C. in
D. for
E. at

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A. IN
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Sustainable practices ________ to protect the environment for future generations.
A. help
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a. a new exciting
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shook; trembled
A. impudence
B. shuddered
C. relentlessly
D. catastrophes
