Acupuncture ? help you. I'm not sure, I've never tried it.
must
might
That experiment ? work, but I'm not totally confident.
may
must
They are speaking Spanish. They ? Mexican.
can't been
must been
must be
The teacher is laughing. He ? .
may be angry
must be angry
can't be angry
Dave works in a school
might be a tutor
must be a teacher
can't be a teacher
Your friend looks ill. He ? have the flu.
can't
must
Richard is asleep. He ? tired.
might be
must be
may is
You're improving. Perhaps you ? play in the school team one day.
can't
might
The weather is bad, but with luck it ? change.
might
can't
The treatment ? be good. All the patients are better.
could
must
Lucy has gone to hospital. She ? .
can't be healthy
might be sad
must be ill
Her leg ? be broken. She can still walk.
might
can't