from the moon, our earth with water seventy percent of its surface, appears a blue ball.
We looked forward to _______ at eight in the morning, but he didn’t turn _______ until 9 o’clock..
The teacher apologized late.
_____ in a heavy rain, the teacher fell ill and couldn’t but ______ for a leave.
As soon as he comes back, I’ll tell him when __________ and see him. \
Our teacher said to us that the earth _________ around the sun.