Henry has packed up his clothes, ______ he can leave here as soon as possible when his fathercomes.

Brian talks to me like a child，_____really annoys me．

.A computer is so useful a machine ________ we can use everywhere.

 Inside the White House, there is a room called the Oval Office. That's ________ President Obama works.

. --- My son is addicted to drugs. He isn’t hopeless, is he?--- Yes, ______ he mends his way and starts all over.