—How long would you like me to heat the oil?—Heat it till it ________ to smoke.
Compared with the nervousness of driving in the rain or snow, it is ______ to sit in a train without any worry of bad weather.
Many experts believe that teachers’ development is _______ the key to better education lies.
Her husband and she are now at work on a new dictionary ______ next year.
The judge made the final decision after listening to the opinions of each party ______.
The athletes, especially the winners, should remain modest ____ rapid progress they’ve made.