<p>1) Although the candidate promised both to cut taxes and improve services, he failed to keep either of them after the election.
answer: change "promised" to "made promises". why? i don't get it.
2) The students found fieldwork more exciting and dangerous than any of them had anticipated, having to be rescued by blah blah..
answer: change the part to :"anticipated: they had to be". again, why? i don't get it.
3) something is helpful to improve someone's skill.
why can't i say "to improve"? Must I say is helpful for improving or what?
4) Althought she considers her project complete, she has heeded advice ~~~.
why "complete" not "completely"?
thanks.</p>
<p>1.) "He failed to keep either of them after the election." What is "them"? Promises. That needs to be clear, or else it will seem like "them" are taxes and services.
2.) "having to be rescued" modifies students, and it's awkward if that doesn't come until way after, especially after the word "fieldwork," which could be what the rescuing might refer to.
3.) Something is helpful for something else. You could say that chess helps to improve math skills, or that chess is helpful for improving one's math skills.
4.) It's a little complicated, but it's because she's considering her project to be complete, so the word following "to be" should be an adjective modifying the noun "project." Adverbs do not modify nouns.</p>
<ol>
<li>"he failed to keep either of them" implies that the "them" refers to things. "the candidate promised" isn't a thing, "promises" are things.</li>
<li>You can't follow a comma with "having". There are comma rules.</li>
<li>Yes, I think so.</li>
<li>Complete as in the adjective. The sentence is not saying that she "completely considers" the project. She thinks that the project IS complete.</li>
</ol>
<p>wow.... thanks a lot. I get it now. Especially the last one and first one, the answers are sick.</p>