The answer must be (E). "such as" in (A) would be appropriate if it were linking noun phrases, but here it's modifying a clause and introducing a clause. (B) is unnecessarily wordy. In (C) and (D), the underlined portion is imposing conditions or limitations on when television is superfici...

The OA must be (D). That is the one answer that is clear, unambiguous, and more or less correct grammatically - though I see a flaw even in (D). (A) uses "instead of," which suggests that the surface area of the flask is being offered as a replacement for the idea of a series of irregular ...

In the OA, "falling" is a present participle. It would help if you would clarify how it would help *you* to know whether it's a gerund or a participle or something else. For instance, is there a particular rule that you're trying to apply here, such that getting this -ing form correctly la...

The noun that is the subject of the sentence is "species." The word "family" is contained in a modifier, so it isn't the subject. Imagine that the modifier were something different -- let's say "The 32 species of dolphins that come from Madagascar are closely related..."...

The fact that Minneapolis is in Zone 4 doesn't necessarily mean that there are cities with a colder average temperature, because we haven't been told that Zones 1, 2 or 3 actually have any cities in them. They might be just rural areas with small towns, or pure wilderness. But the fact that the zone...

The correct form is "I don't know where she lives." The reason is that when a question is embedded as part of a larger sentence (e.g. "I don't know _who he is_," "Do you know _where we should go_?") we don't use the normal question word order (as in "Does she live ...