I’d like to ______ you _______ your success on the experiment.
The heavy rain made his business _______ a great loss.
To the parents’ worry, some middle school students are ______ computer games and completely forget their studies.
It was in 1969 ______ two Americans went to the moon by spaceship.
My mother insisted that I _____to school on foot.
Since Margot found it difficult to settle in a new place, she felt ______ that the family had to move.