How do we know what is at the bottom of his sudden interest in you? 
How do we know the real motives of his interest in you?
We are sure of why he has taken an interest in you.
The woman is sitting on a wooden bench.
The coffee drinks include cafe con leche, cafe cortado, and cafe solo.
A girl wearing a hat sits on the beach talking on her phone.
the baseball field is empty
There is no truth in it at all.
Tuppence was getting even more intense.