1. To answer correctly is more important than () A. answered quickly B. a quick answer C. quickly answered D. to answer quickly 2.It ( until dark that he realized that it was too late to return home. A. is B. wasn't C. weren''td.were3. Do you remember() Tom about this before? A. to telling B. telling C. to have told D. tell 4. Look, () A. there he goes B. there goes he C. he goes there D. he there goes.It seems difficult () A. to stop the child to crying B. to stop the child of crying C. stopping the child cry D. to stop the child from crying 6.I have never drunk ( beer in my life. A. the better one B. more best C. more better D. better
Almost all research papers are expositions. The word exposition quite literally means to set forth a subject. It appeals to the understanding and it is the most common kind of writing, for it is applicable to any task that challenges the understanding--the definition of a word the way to a street address the structure of a plant, the mechanism of a watch, the cause of a historical event the meaning of a philosophy
Conjugated unsaturated systems have a p orbital on a carbon adjacent to a double bond The p orbital can come from another double or triple bond The p orbital may be the empty p orbital of a carbocation or a p orbital with a single electron in it (a radical)
