Below the topsoil of the earth is the subsoil, _____ layer that contains stones mixed with a small amount of _____ organic matter.
#9570
A
a; the
B
the; the
C
不填; 不填
D
a; 不填
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He came back on ___ and left on _____.
#10031
A
a Wednesday, the Saturday
B
the Wednesday, a Saturday
C
The Wednesday, the Saturday
D
a Wednesday, a Saturday