Our school appeals to the students to _________ at least an hour every day to take exercise in order to raise learning efficiency.
______ was done by the girl students.
Which of the following is wrong?This book is easy enough for ______.
Fifty-six ______ twenty-seven makes eighty-three.
Every means ______ tried, yet no result ______encouraging up to now.
Peter was ______ to come to school this morning.