16.Not until all the fish died in the river _______ how serious the pollution was.

16.Not until all the fish died in the river _______ how serious the pollution was.
16.Not until all the fish died in the river __A_____ how serious the pollution was.
A.did the villagers realize B.the villagers realized
C.the villagers did realize D.didn’t the villagers realize
17.My father did not go to New York; the doctor suggested that he _______there.
A.no to go B.won’t go C.not go D.not to go
18.I won’t go to Japan next week._______.
A.He won’t neither B.Neither he will
C.Neither won’t he D.Neither will he
19.Do you enjoy listening to records?I think records are often _______ any actual performance.
A.as good as or better than B.as good or better than
C.like good or better than D.as good as any other
20.There’s no point _______ to persuade him to do anything.
A.to try B.in trying C.of trying D.if you try