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

I watched the girl step off the sidewalk, ____the road, and ___ into the post office.[ ]

If people ________ cutting down the forest, theywill have nowhere _______.

Mum, I ______ the theatre for minutes, but I left my ticket at home.— Don’t worry, honey, I will take it to you.

To do some voluntary work for the 2nd YouthOlympic Games is ______ excellent chance for us to serve our hometown—Nanjing.