Join the following sentences to make one complete sentence without using and, but or so.
She was so excited about her performance. She could not sleep at night.
Topic: Synthesis — 'so... that'
Answer
She was so excited about her performance that she could not sleep at night.
The first sentence already contains the word SO, which is the signal: it needs only the THAT clause to complete it.
The construction is: so + adjective + THAT + subject + verb The excitement is the CAUSE and the sleeplessness its RESULT, and "so... that" expresses exactly that degree-and-consequence relationship.
This is the simplest of the four synthesis questions in the paper, because the original wording points straight at the answer. Whenever one of the two sentences contains "so", "such" or "too", look first at the construction it belongs to.
Note that "so... that" here could also be turned into "too excited to sleep at night" — the transformation tested in 4(d)(i) below.