We know that about seventy percent _____ the earth _____ covered by water.
A./; is | B.of; are |
C.of; is | D.about; are |
—Mary was heard ________ just now. What happened?
—John was telling a joke.
A.to cry | B.laugh | C.to laugh | D.cry |
Our school ________ in the last five years.
A.changed | B.has changed | C.is changed | D.has been changed |
Only by studying hard ________ improve her English soon.
A.she can | B.she did | C.can she | D.did she |
Many teenagers have hobbies. But sometimes they can get ________ of schoolwork.
A.on the way | B.by the way | C.in the way | D.out of the way |
—When I was five, I drew very well.
—________.
A.So did I | B.So was I | C.So I was | D.So I did |