1 You must friendly to others.2 You must be friendly to othe

1 You must friendly to others.2 You must be friendly to othe 改错When you greet with others,you must be friendly. You must be friendly to the animals in the zoo.改为祈使句. you must be friendly to the animals in the zoo.改为祈使句视 you should be friendly to me To make friends,you must be friend to others. Don not be so c___.You should be friendly to others. You must ___(尽力) to help others. Be friendly to everyone ,and you----- (get) happy Everyone should be friendly to others.其中be friendly to是画线部分, Be careful when you promise to others ,you must keep it．If y You must make yourself______when you speak to others.A.under