11.Many impractical suggestions have been _______ while some

11.
Many impractical suggestions have been _______ while some reasonable ones have been welcomed and adopted by the committee.
A.A.A.set up
B.B.B turned down
C.C.C.get up
D.D.D.get down
12.Mark told me that the job would be finished by September,______ personally I doubt very much.
A.A.A.what
B.B.B.why
C.C.C.to which
D.D.D which
13.It’s no good _______ with them.
A.A.A at arguing
B.B.B arguing
C.C.C at quarreling
D.D.D speaking
14.It’s time ______ basketball.
A.A.A to play
B.B.B played
C.C.C had played
D.D.D playing
15.I’ve read _____ sports news about F1 race today.
A.A.A two
B.B.B several
C.C.C a
D.D.D two pieces of
16.It’s not polite to _______ a person while he is talking with others.
A.A.A intermediate
B.B.B interfere
C.C.C interrupt
D.D.D intervene
17.Please don’t go ______.
A.A.A.to there
B.B.B.at there
C.C.C.on there
D.D.D there
18.
It’s high time that he settled down in the country and _____ a new life.
A.A.A to start
B.B.B.started
C.C.C begun
D.D.D to begin
19.Other considerations _______ equal,the pressure remains constant.
A.A.A being
B.B.B.is
C.C.C.to be
D.D.D.was
20.Mary is ______ today.
A.A.A.me
B.B.B.in school
C.C.C at school
D.D.D.at the school.