1 . We, the______ (student) of Junior Three, have to do our homework every evening. (所给词的适当形式填空)

2 . Yuan Longping and his team have solved the problem of______ (hungry) for many people. (所给词的适当形式填空)

3 . They've called to tell us that they will be a bit late with ____(deliver) due to the heavy snow. (所给词的适当形式填空)