用所给词的适当形式填空
【小题1】There will be a wonderful art ___________ (exhibit) this weekend.
【小题2】Bill put the sign “No ___________ (enter)” on the back door just now.
【小题3】Jack's eraser was ___________ (miss), and he has looked for it for a long time.
【小题4】Don't ___________ (cross) the river if you can't swim.
【小题5】Let's ___________ (go) to see a film together.