Ellen was a painter of birds and nature, ______, for some reason, had withdrawn from all human society.
A. which
B. who
C. where
D. whom
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The air quality in the city, ______ is shown in the report, has improved over the past two months.
A. that
B. it
C. as
D. what
It is the third time that she has won the race, _______ has surprised us all.
A. that
B. where
C. which
D. what
After the flooding, people were suffering in that area, ______ urgently needed clean water, medicine and shelter to survive.
A. which
B. who
C. where
D. what
Between the two parts of the concert is an interval, _______ the audience can buy ice-cream.
A. when
B. where
C. that
D. which