rajidraadkhan
What they are getting at is that when we have "it," we end up with two full clauses ("Arabic becomes the dominant lang" and "it replaced older langs"). The explanation is pointing out that when have two full clauses, we're more likely to see COMMA + AND than just a plain AND. However, without IT, we just have two verb phrases (becomes . . . and replaces), and we wouldn't want to separate those with a comma.
However, this is less of a rule than a style/clarity issue. The difference in tense between "becomes" and "replaced" is a much simpler and more direct way to rule out C.
What they are getting at is that when we have "it," we end up with two full clauses ("Arabic becomes the dominant lang" and "it replaced older langs"). The explanation is pointing out that when have two full clauses, we're more likely to see COMMA + AND than just a plain AND. However, without IT, we just have two verb phrases (becomes . . . and replaces), and we wouldn't want to separate those with a comma.
However, this is less of a rule than a style/clarity issue. The difference in tense between "becomes" and "replaced" is a much simpler and more direct way to rule out C.
Statistics : Posted by DmitryFarber • on 09 Jan 2019, 03:19 • Replies 8 • Views 11113
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