Nobody seeing them was a mere chance.
The woman insisted on her husband seeing his lawyer immediately.
The place looked so picturesque and cheerful that he rejoiced at the thought of coming to live there.
When he entered, she stood up and left the room without even looking at him.
On coming home from the college, after he had passed (after passing) his exam, Robert felt very happy.
In the darkness they were afraid of losing their way.
On reaching his destination, he sent a telegram home to say that he had arrived safely.
Thank you for having helped (helping) me.
The new medicine may be recommended only after being approved by the Scientific Board.
You will never learn from your mistakes without writing them down.
On entering the room, the boy glanced curiously around.
The patient felt much better after being given proper treatment.
Just before leaving the classroom, I was approached by a fellow student who asked me to help him.
Looking at the man attentively, she remembered seeing him and speaking to him (having seen him and spoken to him) on several occasions.