after the accident ,it was a long time before she__ walk again.这个题目选什么呢?After the accident ,it was a long time before she ___ walk again.A.could be able to B.can c.were able to d.was able to
问题描述：
after the accident ,it was a long time before she__ walk again.这个题目选什么呢?
After the accident ,it was a long time before she ___ walk again.A.could be able to B.can c.were able to d.was able to
答
D
答
could be able to 可以再次
答案：A
答
D
那场意外过后,过了很长时间,她才能再一次行走.
用was able to ,不用could ,是因为强调走路的能力
答
选D。 be able to do 是指经过努力所能做的...，而can是天生就能做... 如She can swim。 此句是过去式，并且she 在前，必须用was。