[ Grammar ]
Nowadays, automobile manufacturers have industrial robots ______ human workers in factory operations.
A. replace
B. to replace
C. replacing
D. replaced
Select your answer:
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Present Past Tenses › ViewWhile I ___ the dishes last night, I dropped a plate and broke it.
A. was washing
B. had been washing
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Grammar › View
The lesson ___________ at 8:30
A. start
B. starts