4. If you want to express _____ to people who have helped you, there are many ways to do that, such as writing
a note, making them food, or giving them gifts.
(A) gratitude
(B) rigidity
(C) deliverance
(D) admittance
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統計: A(419), B(14), C(23), D(32), E(0) #3130936
統計: A(419), B(14), C(23), D(32), E(0) #3130936