第一行 :删掉 been
while -----when
第二行:his car ran into
Before-----After
thought----thinking
第四行:on mind -----in mind :keep.in mind 记住
late----later
第五行:an experienced driver
If experiences ------experience
第六行:had walked ------has walked
第一行 :删掉 been
while -----when
第二行:his car ran into
Before-----After
thought----thinking
第四行:on mind -----in mind :keep.in mind 记住
late----later
第五行:an experienced driver
If experiences ------experience
第六行:had walked ------has walked