—Rebecca, have you decided what to do this Saturday?
—Not yet. I ______ volunteer at the old people’s home.
may
must
should
would
________you in the classroom?
Cook the food for __________, and then you can have a delicious meal.
These students ___________ a party on the playground if it __________ tomorrow.
She doesn’t know _____________ next.
I look forward to ___________ America next year with my family.