A.it; that | B.that; which | C.it; what | D.that; it |
A.Where; that | B.that; which | C.that; that | D.which; that |
A.after | B.before | C.what | D.that |
A.when | B.that | C.which | D.how |
A.is; that | B.was; that | C.is; where | D.was; where |
A.During the first half of the 20th century |
B.That it was in the first half of the 20th century |
C.It was in the first half of the 20th century |
D.It was the first half of the 20th century |
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