A-A+
Racing the clock every day is such an exhausti
问题详情
Racing the clock every day is such an exhausting effort that when I actually have a few free moments, I tend to collapse.
A．fall down
B．fall ill
C．fall out
D．fall behind
参考答案
正确答案：A
解析：fall down倒下，落下；fall ill病倒；fall out争吵，争执：fall behind落后。因为collapse表示“倒塌”，故选A项。
