—Would you like to climb mountains with me this Sunday?—I’d love to. But I_______ play table tennis between Class Three and our class.

Every student as well as teachers who ______ to visit the museum ______ asked to be at the school gate on time.

Mary        three of her classmates        invited to the party.

_______your father and mother both teachers?

He says all _______ tried their best and that all that can be done _______ been done.