Ten years ago, the population of our village was ______ that of theirs.
A．as twice large as B．twice as large as
C．twice as much as D．as twice much as
She has been working hard day and night, which of course, _______ her pale face.
A．accounts for B．stands for
C．goes for D．answers for
--- Are you satisfied with what he did?
--- No. It couldn’t have been ______.
A．worse B．better C．so bad D．the worst
--- He worked out such different questions at a very young age.
--- Oh, he ______ a very smart student then.
A．could have been B．should have been
C．might have been D．must have been
In our childhood, we were often ______ by Grandma to pay attention to our table manners.
A．demanded B．reminded C．allowed D．hoped
Many lifestyle patterns do such _____ great harm to health that they actually speed up ____ weakening of the human body.
A．a; 不填 B．不填; the C．a; the D．不填；不填
