Use infinitive to join the sentences –
She was very weak . She could not walk.
He has many responsibilities. He has to fulfill these.
Will he visit there today ? He needs to finish the job .
Rohit was happy. He gave a good start.
Sunil was sharp. He scored the goal.
She is so casual. She can’t take the matter seriously.
The movie is very long. It takes time to finish.
The party is so organized. It entertains us.
The boy is talented. He tops the class.
Trees are very essential. They keep the balance of nature.