<p>Halleys comet is a potato-shaped lump (about ten miles long)A (with a mass)B (estimated at)C 10 billion tons, (most of which)D is water ice. No error E</p>
<p>What do you think? IMO, the relative pronoun (which) has to refer to the the noun that precedes it, which would be “tons”. However, it actually has to refer to “mass”, so D should be the answer right?</p>
<p>If it’s not C, then I would go with E, even though I may be wrong. It’s definitely a tricky one because I don’t know off the top. If I were taking the test I would choose between C and E, and decide to put E if there are fewer than three Es at the end. C might sound a little weird but I’m pretty sure that “estimated at” is acceptable.</p>
<p>Could it be A? I’m not that good at grammar so don’t laugh at me if I’m wrong, but would you need a “that is” in there? Like a potato-shaped lump that is about ten miles long? I probably wouldn’t pick this on an actual test but…</p>
<p>Halley’s comet is a potato-shaped lump (about ten miles long) (with a mass) (estimated at) 10 billion tons, (most of which) is water ice. No error E</p>
<p>Ok here is how i arrived at my answer.</p>
<p>halley’s comet is about 10 miles long. makes sense right?
With a mass is kind of awkward, but it is gramatically correct, correcly modifying halley’s comet.</p>
<p>estimated at. correct cant think of anything else to say this seems perfect. (of about comes to mind though). </p>
<p>Most of which is correct.But could this be refering to lump? lol? then it wouldnt make sense i guess.</p>
<p>So you have to choose between B and E most likely</p>
<p>I would have put C. It’s improper use of the word estimate…you don’t “estimate at” a number, but you’d say something like “with a mass estimated to be about 10,000 tons” or whatever it is.</p>
<p>I guess one can’t really “estimate at” something, but I think something can be “estimated at.” Evidently, “estimated at” is acceptable in this case since, in one of the above posts, the OP said that C isn’t the answer.</p>
<p>Halley’s comet is a potato-shaped lump (about ten miles long)A (with a mass)B (estimated at)C 10 billion tons, (most of which)D is water ice. No error E</p>
<p>I think it’s D. The correct sentence should be written this way: Halley’s comet is a potato-shaped lump about ten miles long with a mass estimated at 10 billion tons, much of which is water ice.</p>
<p>Jupp… all the ppl who would put E, congrats, ^^… unfortunately, I put D, gosh dangit… can anyhone explain why D isnt right? the relative pronoun has to refer to the noun that precedes it right? but then, D would be the answers, cos which refers to the wrong noun, namely “tons”, and not “comet”</p>