21. The man has lied so many times that no one will believe him _____ he’s telling the truth.
(A) so if
(B) though so
(C) not even though
(D) even if
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統計: A(8), B(8), C(12), D(304), E(0) #2932769
統計: A(8), B(8), C(12), D(304), E(0) #2932769