30. When do we pay for the dinner dance?
(A) Everybody have to pay in advance.
(B) Everybody must to pay in advance.
(C) Everybody has to pay in advance.
(D) Everybody must have to pay in advance.
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統計: A(26), B(16), C(154), D(14), E(0) #2278457
統計: A(26), B(16), C(154), D(14), E(0) #2278457