--- Do you think Mom and Dad late?
--- No, Swiss Air is usually on time.
A．were B．will be C．would be D．have been
the course very difficult, she decided to move to a lower level.
A．Find B．Finding C．To find D．Found
Shakespeare’s play Hamlet into at least ten different films over the past years.
A．had been made B．was made
C．has been made D．would be made
Don’t turn off the computer before closing all programs you could have problems
A．or B．and C．but D．So
Volunteering gives you a chance____ lives, including your own.
A．change B．changing C．changed D．to change
Most of us found ______ difficult to finish the work in such a short time.
A．this B．which C．what D．it
