1.Shall we go to the park / Let's go to the park./ What do you think of going to the park?Etc.
2.How about going hiking?/ Let's go hiking then./ Go hiking /Hiking?/ Etc.
3.So we must get ready for it this evening.Etc.
4.But my cell phone doesn't work now./ But my cell phone has been broken down.Etc.
5.Would you mind using my old one / You can use my old one.Etc.