17. Even a speech on a serious subject should be _____ with a little humour.
(A) assailed
(B) besieged
(C) bombarded
(D) coerced
(E) leavened
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統計: A(2), B(14), C(3), D(4), E(19) #3233413
統計: A(2), B(14), C(3), D(4), E(19) #3233413