Answer:
The plague and the Great Fire of 1666 were still in living memory.
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The "were" should be "was."</em>
When it first opened London is a very different place.
<em>The "is" should be "was."</em>
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I could only find two, sorry.
Explanation:
C. For is the preposition
Answer:
Americans are racist
but there are many jobs for immagrants
I think for this one, it is he devoted himself to scientific research.