As soon as he arrived at the airport, he called home. A. No sooner had he arrived at the airport
As soon as he arrived at the airport, he called home.
A. No sooner had he arrived at the airport than he called home.
B. He arrived at the airport sooner than he had expected.
C. Calling home, he said that he had arrived at the airport.
D. He arrived at the airport and called me to take him home.