An average adult works best with seven or eight hours, although some can function with as little as four hours and others seem to need ten or more. Studies show that people can adapt to somewhat reduced sleeping schedules without _______ adverse effects. But one thing is certain. If you don’t get your quota, you become cranky, nervous and increasingly upset.

Which of the following sentences doesn’t use an adverb of manner?

On behalf of the committee, he thanked the supporters for the great and loyalty given to the football team. Which of the underlined word is grammatically incorrect?

Indonesian Batik is __________ recognized.

Rudi broke his leg in the accident; therefore , he will have Amir to drive him to his work. Which of the underlined words is grammatically incorrect?

___________ a skillful photographer, a person should have both manual skill and a good eye for detail.