Most students think this book is useful as it _______ all the basic grammar rules they need to know.

for a second,” the boy says, “______ thatmy father would come to my rescue.”

One thousand dollars a month is not a fortune butwould help cover my living ________.

．Only when Tom fully recovered___________bgone D．he had gone

The news shockedthe public, _____ to great concern aboutstudents’ safety at school.[ ]