We all feel it is Jack as well as his wife that ______ for their son’s bad performance at school.
#70528
A
are to blame
B
is to be blamed
C
are to be blamed
D
is to blame
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Go back home now, Mary. Your parents ______ your safety.
#63864
A
are concerned about
B
are concerned with
C
are concerned on
D
concern of
The students are _____ to hand in the exercises before class. 
#81685
A
wished
B
hoped
C
enjoyed
D
promised