It was only when the car pulled up in front of our house ___________we saw Lily in the passenger seat.
which
that
when
where
Today we have chat rooms, text messages and email, but we seem _______ the art of communicating face-to-face.
_________ to too much sunlight will do harm to your skin.
()There is no greater pleasure than lying on my back in the middle of the grassland, _____at the night sky.
__________ the program , they have to stay there for another two weeks.
What worried the child most was _______ to visit his mother in the hospital.