(届陕西省西工大附中高三第六次模拟英语试卷)It was two days before my mother flew to New York ______I arrived home.
Simon made a big bamboo box __________ the little sick bird till it could fly.
Today we have chat rooms, text messaging, emailing...but we seem __________ the art of communicating face-to-face.
As a punishment she was not permitted __________ part in any school activity in a week.
I hurried to the airport only __________ the plane I was to take had just taken off.
It is difficult __________ a best friend.