Shutting down the projector
To avoid damaging the projector, the technician must never pull out its cable while it is still running.
She switched off the projector ___ she removed the cable from the socket.
Choose the word that best fits the gap. Write the word.
before
once
as
because
146 exam-style questions on WJEC GCSE English Language 3.1.4 Editing task at word, sentence and text level. Each one has a worked solution and a mark scheme showing where the marks go.