24. Seeing the boy ___________ off his bike, his father pulled him up immediately.
(A)to fall
(B)falling
(C) fell
(D) fallen

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統計： A(10), B(66), C(23), D(27), E(0) #1676271

詳解 (共 2 筆)

#3781955
Seeing the boy who w...
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#4786074
(While his father sa...
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