—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
The explanation of our teacher will make the reading easy ______.
When the clock __________ twelve o’clock, Cinderella suddenly remembered her godmother’s words and rushed away from the prince.
----Look! Where are you going? ---Sorry. I _______________.
________ was most important to her was her family.
All of us found ______ difficult to work out the maths problem.