＿＿＿＿＿ it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.

ter use is ________ of your spare time, you’ll make good progress in doing your business

88 My old school friend comes to see me now and then The underlined part means ____

You must concentrate _____ your study not on your clothes.

255 The college entrance examination isdrawing near and all the students are ploughing through their studies Whatdoes the underlined part means _____