His opening up _____ food processing factory is _____ comfort to his parents.
A.不填;a | B.a;不填 |
C.a;a | D.the;不填 |
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His opening up _____ food processing factory is _____ comfort to his parents.
A.不填;a | B.a;不填 |
C.a;a | D.the;不填 |