Four sentence corrections. 1.Yellow jackets number among the 900 or so species of the world’s social wasps, living in a society that is highly cooperative, organized, and it consists of almost all females--the queen and her sterile female workers. 2.Wasps live in a society that is cooperative, organized and consists of almost all females. 3.Wasps live in a society that is cooperative, organized ,and that consists of almost all females. 4.Wasps live in a society that is cooperative, organized and that consists of almost all females.

grammer question(reallly need some grammer experts) Prices at the producer level are only 1.3 percent higher now than a year ago. this sentence is wrong, because prices can't be compared to a time period(a year ago). so the correct version is "Prices at the producer level are only 1.3 percent higher now than those of a year ago." But then i came cross this sentence: Heating-oil prices are expected to be higher this year than last. this original sentence is correct, as it compares this year to last(year) and it's logically parallel. I get rather confused about those two sentences, because i think they are quite the same." Price are higher now than a year ago." and " Price will rise higher this year than last." aren't they? so why can't we just compare NOW to A YEAR AGO just like what we do in the" Heating-oil prices are expected to be higher this year than last.". Is there any reason that i can't use the same comparison structure here?

Are both sentences correct? Gas prices in 2007 were higher than in 1997. Gas prices in 2007 were higher than those in 1997.

GMAT sentence correction please please please Here are two sentences: Wild animals have less total fat than THAT of livestock. the GMAT offical guide says this usage is grammatically wrong since what THAT refers to is unclear.it could be "wild animals",which is nonsensical. but here is another CORRECT sentence from GMAT: Rice has protein of higher quality than THAT in wheat. I don't see any differences in those two sentences so I can't figure out why THAT can be used here.Dosen't this THAT fail to refer back to protein?I mean it could refer to RICE according to its position in the sentence and thus cause ambiguity. please please please help me with this.

sentence correction Although Alice Walker published a number of essays,poetry collections,and stories during the 1970s,her third novel,The Color Purple,was published in 1982 and, winning both the National Book Award and the Pulitzer Prize,brought her the widest acclaim.

GMAT question please(critcal reasoning) On pacific islands,a newly arrived gecko species,the house gecko,is displacing the previously established mourning gecko in urban areas,but popluations of the two species are more stable in rural areas far from human settlement.the house gecko does not attack the mourning gecko,but in areas where insects congregate it prevents the mourning gecko from feeding on them. Which of the following contributes most to an explanation of the difference between gecko populations in urban and rural areas? A.In urban areas,gecko are valued because they eat so many insects. B.Gecko defend territories agasint other members of the same species. C.House geckos that arrive on islands are carried there in boats and planes. D.In places where there are lighted buildings,insects tend to gather around the light. E.Mourning geckos are all females,and reprouduce asexually,but house geckos reproduce sexually. The correct answer is D but I just don't know why.

Please correct this sentence In 1985, car was the most popular transportation, each people travelling average 3199 miles per year by cars and this trend continued to 2000, when average miles travelled per person by car increased significantly to 4806 miles.

Is slang a normal part of everyday English? Such as "in my neck of the woods" , "grab a cup or joe", "over the moon", "head over heals", "as smart as a whip", "as happy as a clam" etc. I know quite a few of them but honestly I've seldom heard any of my american or british friends speaking any of them.so literally im a bit confused that if it's necessary for me to keep on learning any slangs. really need some pointers, thanks.

Mass media is or are? is"mass media" plural or single? should i say"mass media is.."or"mass media are.." i know media is the plural of medium