47. Have you
by a dog?
A. bite
B. bit
C. ever been bitten
D. ever been bit
48. The room is being
at the moment.
C. cleaning
A. was cleaned
that the strike will end soon.
B. cleaned
D. clean
49. It
A. is expected
50. It is
В. ехpеcted
C. are expected
D. was expected
that many people are ...