Fill in the blank with the correct adjective clause:
The electrician ______ has promised to come back on Monday to check the wiring.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → who fixed our inverter last week
Adjective clause for a person:
- An adjective clause describes the noun just before it. For a person, it begins with who when the joining word is the subject of the clause.
- Complete sentence: The electrician who fixed our inverter last week has promised to come back on Monday to check the wiring.
- Here “who” is the subject of “fixed”. The clause tells us which electrician.
Why the Other Options are Incorrect?
Option 1: fixed our inverter last week — Incorrect. This has no joining word. The sentence becomes “The electrician fixed our inverter last week has promised ...”. It has two verbs, “fixed” and “has promised”, with nothing to join them.
Option 2: who fixing our inverter last week — Incorrect. “Fixing” alone is not a full verb. A clause needs its own subject and a full verb, so “who fixing ...” is not a clause, and the sentence breaks.
Option 3: who he fixed our inverter last week — Incorrect. The option says “who he fixed”. “Who” is already the subject of “fixed”, so the extra “he” gives the verb a second subject.