Do something for others
There are always some old clothes you don't want．And there is always some food you don't eat．What can you do？Send them to the two place．

Wall of Kindness You can see Wall of Kindness in many cities now，like Shanghai，Beijing，Xiamen and Qingdao．People hang their old clothes on the wall．People who need them can take the clothes away．You can always see jackets，sweaters，trousers and coats on the wall．

Share Fridge China has its first Share Fridge．It's in Shanghai．There is a lot of food in it，like cakes．The food is from some restaurants and shops．People don't need to buy the food because it's free．They can take it home．

根据上述内容，判断下列句子正误，正确的在答题卡上将"T"涂黑，错误的在答题卡上将"F"涂黑．
21．We can't see Wall of Kindness in Xiamen． ______
22．People who need the clothes on the wall can take them away． ______
23．China has its first Share Fridge in Shanghai． ______
24．People have to pay for the food in Share Fridge． ______
25．Wall of Kindness and Share Fridge are helpful to people． ______ ．