.He is good at English, ______we all know.
The crowd went _______ when they saw the famous star. They were crazy!
Cell phones _______ by more and more teens and many new functions _______ to them nowadays.
— The couple _______ after 10 years’ marriage. —What a pity. Their child may suffer a lot from this.
—I need some fresh air, so I’m going out for a walk. — _________.
The teacher was angry about his being late for class, but he behaved ______ nothing had happened.