21. His life philosophy is to be grateful and live each day as if it _____ his last.
(A) is
(B) were
(C) be
(D) being

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統計： A(89), B(201), C(16), D(27), E(0) #3105309

詳解 (共 1 筆)

#5983874
與現在事實相反要用過去式"live ea...
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