I remember I put them on the chair because the telephone rang as I come/was coming in选哪个为何

题目

I remember I put them on the chair because the telephone rang as I come/was coming in选哪个为何
这个问题我认为很值得我们思考，我认为前者

答案

选was coming in.
是当我“正”走进时,所以是过去进行时.