对be about to do sth when 造句

问题描述:

对be about to do sth when 造句

i am about to go out when my mum comes.

One day,I was about to do some shopping when he telephoned me.一天,我正要去买东西时,他打电话找我.One day,I was about to do some shopping when he telephoned me.一天,我正要去买东西,他打电话找我....