GMAT Sentence Correction Practice Test 06

1. Inertia-gravity waves cause characteristic stripy patterns in the clouds in the lower atmosphere but they are disregarded by conventional weather forecasts because they are thought to be too small to interact with larger systems such as warm and cold fronts.

A. they are disregarded by conventional weather forecasts because they are thought to be too small
B. they are disregarded by conventional weather forecasts because these waves are thought to be too small
C. conventional weather forecasts disregard them because they think they are too small
D. conventional weather forecasts disregard these waves because they are thought to be too small
E. conventional weather forecasts think them too small

2. In archeological terms the university was a latecomer to the town, which was already centuries old by the time we first hear of the establishment of a community of scholars and teachers in the late 12th Century.

A. which was already centuries old by the time we first hear of the establishment of
B. already centuries old by the time we first hear of its establishment of
C. which was centuries old already when we first hear of the establishment of
D. that was already centuries old by the time we first are hearing of the establishing of
E. that was already centuries old by the time we first hear that they had established

3. The recent photographs of the giant squid are remarkable because they show these enormous living creatures as moving around in their natural environment, whereas previous pictures have been of only dead animals.

A. because they show these living creatures as moving around in their
B. in that they show this most enormous of living creatures moving around in its
C. in that they show this enormous living creature moving around in its
D. because these enormous living creatures are shown to be moving around in their
E. because they show this enormous living creature moving around in a

4. It is usual for scientists and social scientists to abandon their theories only if another more attractive theory comes along and not when they have been proved incorrect.

A. their theories only if another more attractive theory comes along and not when they have been proved incorrect
B. a theory not because it has been proved incorrect, but because another more attractive theory comes along
C. their theories not when they have been proved incorrect, but because other more attractive theories come along
D. a theory only when other more attractive ones come along, rather than when they are proved wrong
E. their theories not if they have been proved wrong, but if another more attractive theory comes along

5. Once a hurricane is identified, it is given a name from a list drawn up by the United States Weather Service, a list that is reused after a few years, but with the names of the worst hurricanes omitted.

A. but with the names of the worst hurricanes omitted
B. omitting the names of the worst hurricanes
C. the names of the worst hurricanes being omitted
D. after they have omitted the names of the worst hurricanes
E. after omitting the worst hurricane names

6. Dunbar argues that gossip is important in human societies in the maintenance of social cohesion, just as social grooming does for other primates.

A. gossip is important in human societies in the maintenance of social cohesion, just as social grooming does for other primates
B. gossip is important in the maintenance of social cohesion in human society, just as social grooming does for other primates
C. in human societies gossip is important in social cohesion like social grooming for other primate societies
D. similar to social grooming in primates, human gossip is important in maintaining social cohesion
E. gossip is important in human societies in the maintenance of social cohesion, just as social grooming is in other primate groups