[ Grammar ]
Students must conduct their laboratory experiments accurately and___
A. in a safe manner
B. with safety
C. safely
D. safe

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Grammar › ViewWhat is the opposite of “reactive customer service”?
A. Proactive
B. Non-active
C. Overactive
D. Active
Mixed General Quiz › View
What _______ when I called ?
A. Was you doing
B. Was you do
C. Were you doing
D. You were doing
I didn’t have any scissors so I cut it ___ a knife.
a. at
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Past Continuous Tense & Past Modals › View
I couldn’t watch the match because I … my homework at that time
A. did
B. was doing
