A quarrel _________, which made him ______ his family.

Our class _______ of thirty-two boys and twenty-three girls.

The invention of steam engine greatly sped up the industrial revolution, which _____ a lot to the take-off of the world.

The quality of a processed food largely ______ the raw material and the way it _______.

—Why is he feeling down today?
—Because the suggestion he________has been turned down.

Her mother does not ______ of her going to study in the United States alone.

There is so much noise in the yard that I can’t ________ my attention on my work.

She’s having a lot of trouble with the new computer, but she doesn’t know whom to ____.

---Have you ____ some new ideas?
---Yeah. I’ll tell you later.

The computer system ______ suddenly while he was searching for information.