26. The salesperson tried hard to _______ my grandpa to buy the smart phone.
(A) cooperate
(B) declare
(C) convince
(D) discourage
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統計: A(12), B(15), C(298), D(34), E(0) #1573254
統計: A(12), B(15), C(298), D(34), E(0) #1573254