One can’t be really happy if _________he enjoys doing is regarded by society as of no importance.
| A．how | B．that | C．what | D．where |
．Why not try your luck downtown, Bob? That’s ________ the best jobs are.
| A．How | B．what | C．where | D．why |
The children went home from the grammar school, their lessons _______ for the day.
| A．fishing | B．finished | C．had been finished | D．were finished |
. According to the law, it is _____ get your driving license.
| A．not until you’re eighteen can you | B．until you’re eighteen that you can’t |
| C．not until you’re eighteen that you can | D．until you’re eighteen when you can’t |
______ you eat the correct foods ______ be able to keep fit and stay healthy.
| A．Unless; will you | B．Only if; you will |
| C．Only if; will you | D．Unless; you will |
John’s ability to learn from experience greatly to his success in public life.
| A．owed | B．attached | C．related | D．contributed |