<p>24.) After the uprising of October 10, 1911, that has led to the establishment of a Chinese republic, many Chinese Americans decided to return to China in hopes of a bright future there. No error</p>
<p>The answer is has led. Is it supposed to be that "led" to the ... I always have trouble with has, have, had. Can someone tell me the difference between those 3?</p>
<p>I dont know completely if its right.. but this is what i found out. </p>
<p>has is singular and past tense EX: the boy has eaten the cake. boy is singular in this case.</p>
<p>have is plural and past tense EX: The students have been in class all day. students is plural. </p>
<p>had can be either singular/plural and past tense:</p>
<p>EX1: I had always wanted to become a doctor.
EX2: The animals had drank water before. This is a weak one.. Its 11:30 ET and im really tired to come with good examples.. </p>
<p>hope this helps.. but this is the way i distinguished them.. i still could not find a proper way to distinguish them.</p>
<p>"has" should be replaced by "had" right? This event occured in 1911 so I think
it shoud use a past tense.</p>
<p>ZBY is right.</p>
<p>so it's not just "that led to the establishment"</p>
<p>it could be either "led" or "had led." the reason it can't be "has led" is a little obscure--"has led" would be emphasizing that the event, or its effects, were recent. "had led" would emphasize that the establishment of the new republic was a necessary pre-condition for the decision. "led" by itself would be saying that the decision and the establishment weren't really causally related, but that they both happened after the uprising.</p>
<p>remember when you're doing ISE questions that you don't have to know what the correct phrasing would be; you only have to be able to identify things the SAT would think are wrong. since the only other verb is in the simple past tense (just "-ed" with no helping verb) and you're given a date that occurred almost a hundred years ago, you can assume that the "has" is out of place by SAT grammatical standards.</p>