I am blessed with a great class, ________everyone is hardworking, kind and friendly to each other.

 —Life is hard these days.—At least we have some money left. That's ________, isn't it?

Studying Wendy’s menu, I found that many of the items are similar to ______ of McDonald’s.

____ child is pleased, for____ of them has got his own share. 

Haze (雾霾)appears around us. Let’s do ________ helpful to protect the environment.