I couldn't________.The line is busy.A.go byB.go aroundC.get inD.get through为什么这里用的是get through

I couldn't________.The line is busy.A.go byB.go aroundC.get inD.get through为什么这里用的是get through
I couldn't________.The line is busy.
A.go by
B.go around
C.get in
D.get through
为什么这里用的是get through

I couldn't________.The line is busy.A.go byB.go aroundC.get inD.get through为什么这里用的是get through
get through 就是电话接通的意思

接通,接上.意思是线路忙,联接不上