According to the rules and regulations, all payments ________ be made in cash in the shopping center.
#62400
A
shall
B
can
C
must
D
should
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Mr. Bush is on time for everything. How _______ it be that he was late for the opening ceremony?
#76235
A
should
B
can
C
may
D
must
If the students who killed themselves had only been more confident, their deaths ________.
#63688
A
need have been avoided
B
must have been avoided
C
might have been avoided
D
will have been avoided
Susan’s parents have bought a large house with a swimming pool.It be very expensive.
#76457
A
must
B
can
C
mustn’t
D
can’t