Sentence:  We made an odd party before the arrival of the Ten, particularly when the Celebrity dropped in for lunch or dinner. He could not be induced to remain permanently at Mohair because Miss Trevor was at Asquith, but he appropriated a Hempstead cart from the Mohair stables and made the trip <WSD>sometimes</WSD> twice in a day. 
Meaning of the word marked with <WSD> tags:  On certain occasions, or in certain circumstances, but not always. (from 16th c.)