1 : When I reached my office P : to get home early Q : I phoned my mother R : that I wouldn’t be able S : to tell her 6 : as I had promised. The Proper sequence should be:

The correct answer is: A. PQRS

Here is a brief explanation of each option:

• Option A: PQRS is the correct sequence. The sentence should read: “When I reached my office, I phoned my mother to tell her that I wouldn’t be able to get home early as I had promised.”
• Option B: QSRP is not the correct sequence. The sentence would read: “I phoned my mother to tell her that I wouldn’t be able to get home early when I reached my office as I had promised.” This is not a grammatically correct sentence.
• Option C: RPQS is not the correct sequence. The sentence would read: “That I wouldn’t be able to get home early as I had promised, I phoned my mother to tell her when I reached my office.” This is not a grammatically correct sentence.
• Option D: SQPR is not the correct sequence. The sentence would read: “To tell her that I wouldn’t be able to get home early as I had promised, I phoned my mother when I reached my office.” This is not a grammatically correct sentence.