The correct answer is "Correct". Accurate and correct are synonyms, both meaning free from error.

The correct answer is "Global warming". The sentence directly states that the lecture focused on global warming.

The correct answer is "They are preparing for the exam". The subject They is plural, so the correct verb form is are preparing.

The correct answer is "Focus on key ideas and details". The best listening strategy is to focus on the main ideas and supporting details.

The correct answer is "Make progress". The natural collocation is make progress, meaning to advance or improve.

The correct answer is "The company lowered its costs". This paraphrase uses different words: reduced becomes lowered, expenses becomes costs.

The correct answer is "To examine carefully". Analyze means to examine something in detail to understand it better.

The correct answer is "Completed". The word yesterday indicates a completed past action, so the past tense completed is correct.

The correct answer is "Scanning". Scanning is the technique used to locate specific information quickly without reading everything.

The correct answer is "After class, the students reviewed their notes". A comma is correctly placed after the introductory phrase "After class".

The correct answer is "Copying the original sentence exactly". Paraphrasing requires rewording the original text, not copying it directly.

The correct answer is "Pay". The natural collocation is pay attention, meaning to focus and listen carefully.