22. What does to do so in the first paragraph refer to?
(A) To develop dementia.
(B) To speak more than one language.
(C) To do what is expected by monolinguals.
(D) To become a person that can speak more than one language.
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統計: A(27), B(17), C(11), D(13), E(0) #1571035
統計: A(27), B(17), C(11), D(13), E(0) #1571035