30. As little children, we were often told _______ in the field after dark.
(A) to not ramble alone
(B) don't ramble alone
(C) mustn't ramble alone
(D) not to ramble alone
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統計: A(1), B(2), C(0), D(6), E(0) #3342243
統計: A(1), B(2), C(0), D(6), E(0) #3342243