To save class time, our teacher has ________ students do half of the exercises in class and complete the other half for our homework.
is known to everybody, the moon travels round the earth once every month.
—We want someone to design the new art museum for us? —the young fellow have a try?
The little pet cat felt freezing cold, so she stood_______ to her mother.
Her _______ smile suggested that she was very _______ with the answer.
The world will be different and we will have to be more ready to_____ the changes.