We must protect animals, they are friends.
As we all know, playing chess is usually one-to-one game.
当别人称赞你时, 你应该说: “__________”。
当你被介绍认识某人后, 你应该说: “__________”。
—What __________ is Jane in? —She is in __________ Six.
Linda is fifteen __________. She is in Class 1, Grade 9.