The writer and professor, whom I often refer to at the meetings, ___

 The writer and professor, whom I often refer to at the meetings, ____ famous for those works.

#86155

are

were

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Here _____a set of keys.The keys _____Bob’s.

#43754

is,are

are,is

is,is

are,are

Mary and I _________ friends.

#44041

are

Four days __________ enough for us. We still need ________ two days.

#43509

isn’t, another

aren’t, another

isn’t, more

aren’t, more

 Professor Smith, along with his assistants, _____on the Project day and night to meet the deadline.

#85684

work

working

is working

are working

—Remember that where and when two different English question words___________. —I see, but can you tell us how to use them, sir?

#86098

are

Being

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