Not until all the fish died in the river how specious the pollution was.
A．did the villagers realize B．that the villagers realized
C．the villagers did realize D．didn’t the villagers realize
a reward of $1,000 will be given to can provide any clues to the case which has been investigated by the police for nearly half a year.
A．whoever B．whomever C．anyone D．who
—What caused the party to be put off?
—_________the invitations.
A．Tom delayed sending B．Tom’s delaying sending C．Tom delaying sending D．Tom delayed to send
.—How do you find your new classmates?
—Most of them are kind, but is good to me as Bruce.
A．none B．no one C．every one D．some one
It has been announced that candidates remain in their seats until all the papers have been collected.
A．can B．shall C．will D．may
Father made a promise I passed the exam he would buy me a bike.
A．that B．if C．whether D．that if
