10. The most convenient way to get around this small town is _____ a bike.
(A) to ride
(B) to have ridden
(C) rides
(D) rode
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統計: A(33), B(2), C(18), D(5), E(0) #2344172
統計: A(33), B(2), C(18), D(5), E(0) #2344172