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Jack seldom gets together with his friends.He usually stays at home with his pet dog,Lucky.They sometimes go for long walks in the park.although Jack is often alone,he is never lonely.He always tells his friends that a dog is man's best friend

Vocabulary & Idioms

go for a walk 去散步

Grammer Points

Join is always busy. be+频率副词

He is never selfish.

He usually goes to bed late. 频率副词在动词前

although but    because  so 不可同时使用