"You could not possibly have come at a better time (sie hätten unmöglich zu einer besseren Zeit kommen können = sie kommen genau zur richtigen Zeit; possibly [‚pɒsɪblɪ]), my dear Watson (mein guter Watson),“ he said cordially (sagte er herzlich; cordially [‚kɔːdɪəlɪ]).
"I was afraid that you were engaged (ich fürchtete, Sie wären beschäftigt; afraid [ə‘freɪd]; engaged [ɪn‘geɪdʒd]).“
"So I am (so = das bin ich). Very much so (sogar sehr).“
"Then I can wait in the next room (dann kann ich im Nebenzimmer warten; next — nächstes, neben).“
“You could not possibly have come at a better time, my dear Watson,” he said cordially.
“I was afraid that you were engaged.”
“So I am. Very much so.”
“Then I can wait in the next room.”