"Those responsible for the accident      be punished while those contributing to solving the problems be rewarded," promised the official then and there.
#62968
A
need
B
may
C
can
D
shall
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My sister met him at Ningbo Grand Theatre yesterday afternoon, so he         your lecture. 
#63615
A
couldn’t attend
B
mustn’t have attended
C
shouldn’t attend
D
couldn’t have attended
The flowers in my room         every day, or they’ll die.
#75306
A
must water
B
must be watered
C
should water
D
can be watered