問題詳情

28. Some airlines allow passengers to board with animals _____ to provide emotional support.
(A) whose primary purpose is
(B)which are the primary purpose
(C) are primary purposes in which
(D) is whose primary purpose

參考答案

答案:A
難度:困難0.358974
統計:A(14),B(20),C(1),D(2),E(0)

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