12. The bus was _____ we could only stand right next to the rear door.
(A) so crowded that
(B) very crowded so as
(C) so crowded to
(D) too crowded to that
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統計: A(195), B(4), C(8), D(20), E(0) #2920647
統計: A(195), B(4), C(8), D(20), E(0) #2920647