Comparing likes with likes (e.g., "to answer accurately" is more important than "to finish quickly"). Appositives & Relative Clauses:

Here’s a concise review of the (collection of TOEFL structure questions in PDF format), which is popular among Indonesian learners.

To conquer this section, a strong grasp of core English grammar rules is essential. Here are the key areas you need to focus on, often found in the best PDFs:

The relative clause introduced by where needs a subject ( magma ) and a verb. Option (B) provides the correct active singular verb heats . Option (A) is a participle, not a main verb. Option (C) makes the meaning passive, which is illogical. Option (D) includes an extra pronoun it , creating an ungrammatical double subject. Part 2: Written Expression (Error Identification)