9. The hike was exhausting; ________ , the breathtaking view from the top made it all worthwhile.
(A) therefore
(B) nevertheless
(C) furthermore
(D) otherwise
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統計: A(4), B(11), C(5), D(6), E(0) #3890915
統計: A(4), B(11), C(5), D(6), E(0) #3890915