Remember that ______ is better than cure, so brush your teeth at least twice a day and visit your dentist for regular check-ups.
| A．priority | B．privilege |
| C．principle | D．prevention |
— Could we make it December l0th?
—.
| A．That's fine with me | B．Go ahead with it |
| C．Take your time | D．It doesn't matter |
He called at every door, urging that people ________his products.
| A．to buy | B．bought | C．buying | D．buy |
The doctor told me that I would recover from my illness if I ______ a healthy diet.
| A．got through | B．fit in | C．stuck to | D．kept up |
--- How was your trip to New York, Jennifer?
--- Fantastic! That was the first time I _______ to such a big city. It’s so impressive.
| A．have taken | B．had taken | C．have been taken | D．had been taken |
__________ has already been pointed out, grammar is not a set of dead rules.
| A．As | B．It | C．That | D．Which |