Joseph Priestley is IMMORTAL in the HISTORY of CHEMISTRY as the DISCOVERY of oxygen in 1774.

There is a DISTINCTIVE difference in the PERCEPTION of GETTING married BETWEEN the West and the East.

She isn't obliged to attend the extra-classes. A. She needn't attend the extra-classes. B. She mustn't attend the extra-classes. C. She has no intention of attending the extra-classes. D. You can't make her attend the extra-classes.

It’s impossible for him to finish his homework in 2 hours. A. He can finish his homework in 2 hours. B. He can’t finish his homework in 2 hours. C. He should finish his homework in 2 hours. D. He may finish his homework in 2 hours.

It is against the law to park on a double yellow line. A. You are allowed to park on a double yellow line. B. You must park on a double yellow line. C. You must not park on a double yellow line. D. You allow to park on a double yellow line.

We are all too DISMISSAL of LOCAL traditions in our MODERN world, but they can have a very STRONG impact on us.

For those who suffered from IRREVERSIBLE damage caused by the UNEXPECTED fire, the RELIEF agencies tried to provide food and other basic ESSENCE.

The search method is EXHAUSTING, so it is ENSURED that all the NECESSARY parameters will be visited and checked for VIOLATIONS.

They are not allowed to use our personal information for their own purposes. A. They don’t have to use our personal information for their own purposes. B. They can use our personal information for their own purposes. C. They mustn’t use our

It is essential for Nam to take a gap year after high school. A. Nam may take a gap year after high school. B. Nam can’t take a gap year after high school. C. Nam mustn't take a gap year after high school. D. Nam should take a gap year afte

It’s obligatory for teachers to change their teaching methods. A. Teachers should change their teaching methods. B. Teachers may change their teaching methods. C. Teachers must change their teaching methods. D. Teachers need to change their

It’s not necessary for every single kid to go to college. A. Every single kid should go to college. B. Every single kid must go to college. C. Every single kid needn’t go to college. D. Every single kid can’t go to college.

It is necessary for you to wash your hands before eating. A. You would wash your hands before eating. B. You can’t wash your hands before eating. C. You must wash your hands before eating. D. You need to wash your hands before eating.