GED Reasoning Through Language ArtsLanguage Conventions and UsageMedium

A student is writing an email to a professor and needs to use the correct word for showing cause or reason. Which sentence correctly uses 'because'?

  1. AI was late, it was because the bus broke down.
  2. BI was late, because the bus broke down.
  3. CBecause the bus broke down, I was late.
  4. DThe reason I was late is because the bus broke down.
Show answer & explanation

Correct answer: C. Because the bus broke down, I was late.

'Because' introduces a subordinate clause that explains the cause or reason for the main clause. When the 'because' clause comes first, it should be followed by a comma. When it comes after the main clause, a comma is usually not needed unless the 'because' clause is non-essential. Option B correctly uses 'Because' at the beginning of the sentence, followed by a comma, to clearly state the reason.

Why the other options are wrong

  • A. This creates a comma splice or run-on sentence; 'it was because' is redundant and grammatically awkward after a comma.
  • B. A comma is generally not needed before 'because' when the 'because' clause is essential to the meaning of the main clause.
  • D. This creates a redundant construction ('The reason...is because'). 'The reason I was late is that the bus broke down' or simply 'I was late because the bus broke down' would be correct.

Using 'Because'

'Because' is a subordinating conjunction used to introduce a clause that explains the reason or cause of something. It connects a dependent clause to an independent clause.

  • Introduces a reason or cause
  • Always starts a dependent clause
  • If 'because' clause comes first, use a comma after it
  • If 'because' clause comes last, usually no comma needed
  • Avoid 'the reason is because' construction

Memory trick: Because explains 'why' like a key to a lock.

More Language Conventions and Usage questions