We thought there were 35 students in the dining hall, ______, in fact, there were 40.
The boy ________ a strange disease is trying to live a normal life.
It was in 1969 ________ two Americans went to the moon by spaceship.
When I came ________ with the teenager hidden in the cave, I was surprised to find him ________ covered with dust.
You can never imagine what great difficulty I had ________ his parents.
One of the engines of the plane was out of order and the bad weather ________ the difficulty.