The result of the experiment disappointed him, so he had to do it again.
Return the book to the library after reading.
The girl is too weak to move. According to the doctor's advice, she must stay in bed.
Without her address, can you write to her?
I remember giving you the number before.
Whenever you are in trouble, you can turn to me for help.
Mr. Wang looks younger than his actual age. He is three years older than me.
He will fail because of lack of experience. Now he needs to learn from knowledgeable people.
You don't have to pretend to know everything, no one will trust you.
You should teach her how to operate the computer, not laugh at her.