怎么把The monkey likes to eat a banana 变成plural?

变成复数是吧：
These monkeys like to eat bananas.the farmer harvested his crop?These farmers harvested their crops.Look at the mango on the tree?the man`s life was in danger?did you read the news in the newspaper?look at the watch in the shop window?the headman attended the kite-flying competition?please wear this sock on your foot?Look at these mangos on the tree.The men's lives were in danger.Did you read the news in the newspaper.Look at these watches in the shop window.The headmen attended the kite-flying competition.Please wear these socks on you feet.