What school rules do you have—Well, we can’t wear a ________ in class. And we can’t run in the hallways.

We are ____faced with the necessity to recognize that having more people implies a lower standard of living

After a month of training, he became __________ to the work as a high-speed train driver.

It’s said that there’re plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay today.

The time is drawing near food raised in space will directly benefit human below.