_____, he has a lot of knowledge about computer.
My friends, after they heard what had happened to me, _______ said it sounded like an adventure.
She ought to stop working; she has a headache because she _________ too long.
-Not getting that job was a big disappointment. -Don’t worry. Something better will ________.
The man we followed suddenly stopped and looked as if _________ whether he was going in the right direction.