We all feel it is Jack as well as his wife that ______ for their son’s bad performance at school.

They are young, but ____ they made it.

After knocking down the old man, the inhuman driver left the accident scene in a hurry,         the law to punish him.

Last Sunday a few of us arranged to meet in town, but Jenny didn’t ____.

Do you know the stages every inventor must ________ before they can have their invention________ .