2.It was after dark when the two children were both ________ on the safety crossing by a lorry.A.knocked down B.knocked out  C.run out D.run across 这几个短语分别是什么意思.

问题描述:

2.It was after dark when the two children were both ________ on the safety crossing by a lorry.
A.knocked down B.knocked out  C.run out D.run across 这几个短语分别是什么意思.