1
You ... be at loggerheads with your dean. It will lead to dire consequences.
mustn't
are not to
shouldn't
can't
2
You ... resolve that knotty problem. It's entirely your own fault.
must
should
better
are to
3
Their companies ... merge in case of necessity.
can
must
have to
might
4
Sue ... win the coveted price. She appears somewhat sad.
had to
might not
could not
ought to
5
You failed to meet the expectations of your superior. You ... be ready for dismissal.
must
may
should
better
6
Living abroad ... be an educational experience.
may
might
can
could
7
Remember that your indecision ... adversely affect your performance.
must
should
better
may
8
Victor is my crony. He ... sell me down the river.
mustn't
needn't
can't
better not
9
The filthy lucre ... lure anyone.
should
better
needs to
may
10
Try to enjoy time tremendously. Life ... be mere existence.
better not
isn't to
can't
mustn't