It is an excellent book, it is worth _________ a second time．
to read
to be read
reading
being read
_________ made her succeed finally was her hardwork and strong will．
It
This
What
As
He is a man of great knowledge, _________ much can be learned．
in whom
about whom
from whom
of whom
Once it is formed, a bad habit is not easy to _________．
get rid of
pick up
cut off
care for
Americans eat _________ vegetables per person today as they did in 1910．
more than twice
as twice as many
twice as many as
more twice than
During your English study, you will _________ many difficulties．
come on
come up
come across
come about
A poet and artist _________ coming to speak to us about Chinese literature and painting tomorrow afternoon．
is
are
was
were
Either you or one of your students _________ to attend the meeting that is due tomorrow．
have
be
Dr．Smith, together with his wife and daughters, _________ visit Beijing this summer．
are going to
is going to
was going to
were going to
I failed again in the exam and only then _________ how much time I had wasted．
I realized
I had realized
did I realize
had I realized