1 .He is very old,____ he still works very hard.A.but B.if C.when D.as 这

1 .He is very old,____ he still works very hard.A.but B.if C.when D.as 这
1 .He is very old,____ he still works very hard.\x05
A.but B.if C.when D.as
这一题为什么选 a when不是也有但是的意思吗