og 127

163.
                Found throughout Central and South America, sloths hang from trees by long rubbery limbs and sleep fifteen hours a day, moving infrequently enough that two species of algae grow on its coat and between its toes.

(A) sloths hang from trees by long rubbery limbs and sleep fifteen hours a day, moving infrequently enough

(B) sloths hang from trees by long rubbery limbs, they sleep fifteen hours a day, and with such infrequent movements

(C) sloths use their long rubbery limbs to hang from trees, sleep fifteen hours a day, and move so infrequently

(D) the sloth hangs from trees by its long rubbery limbs, sleeping fifteen hours a day and moving so infrequently

(E) the sloth hangs from trees by its long rubbery limbs, sleeps fifteen hours a day, and it moves infrequently enough

答案选D没有问题，从on its coat and...就确定只能用the sloth，但是D选项，为什么后面是sleeping ...and moving...？？？？不应该是sleeps...and moves与前面的hangs平行么？？？

晕了，谢谢各位~

sleeping and moving 是hangs的伴随状语。这样的表达也是可行的。

谢谢Icanw！！