关与英语的N道题

关与英语的N道题
The story _____ in the nineteenth century.
a.was happened
b.happened
c.has happened
d.has been happened
The air in big cities _____ often _____ very dirty by factories.
a.is,made
b.are,made
c.will,make
d.will,made
The old man was seriously ill,so we had to ____ a doctor.
a.send up
b.send off
c.send off
d.send away
The teacher asked how man people ______the coming school sports meeting.
a.would take part in
b.had taken part in
To the doctor,the most important thing was ______lives.
a.saved
b.to save
c.saves
d.save