35.Until then,Siemens ______ 10 000 thyristor valves.
A.produced B.has been producing
C.has produced D.had produced
34.-Will you go to the party?
-No,even though ______ to.
A.inviting B.being invited
C.invited D.having been invited
33.As the storm drew nearer,black clouds were ______ over the sky.
A.smoothing B.wondering
C.gathering D.picking
32.No matter what you say,I shall ______ my own opinion.
A.carry out B.keep up
C.insist on D.stick to
31.-The disease he suffers is not easy to cure.
-I know,but is he ______ better?
A.much B.rather
C.any D.little
30.The bridge was named ______ the hero who gave his life for the cause of the people.
A.from B.with
C.by D.after
29.The new appointment of our headmaster ______ from the very beginning of the next semester.
A.takes effect B.takes place
C.takes turns D.takes part
28.-Is Donny the best one of the three students?
-Yes,he is ______ than the other two.
A.a better B.the better
C.the best D.a best
27.As ______ clear from his manners,he is a teacher.
A.being B.is
C.to be D.been
26.-Is the car yours?
-No,______.
A.Smiths B.that of Smiths
C.the Smiths D.the Smiths'