their inability has been unable
the inability they possess has not been able
having been unable
they were unable
they have been unable
第1题:
A、have sold
B、have been sold
C、has sold
D、has been sold
第2题:
A、it not have been
B、is not been
C、had it not been
D、has not been
第3题:
A.has so much been done
B.have so much been done
C.has been done so much
D.so much have been done
第4题:
A.has been sent
B.was sent
C.had been sent
D.was being sent
第5题:
Several shoals______reported to exist in the area southwest of the Brothers.
A.have
B.have been
C.has
D.has been
第6题:
A、were/ were
B、have been/ has been
C、was/ was
D、are/ is
第7题:
A.have been proved
B.have proved
C.has proved
D.has been proved
第8题:
More students than one ______ there.
A. has been
B. have been
C. had been
D. would have been
第9题:
A.has been done
B.was done
C.have been done
D.were done
答案:A
第10题:
A、are
B、is
C、have been
D、has been