—Can you understand me?    —Sorry. I can _________ understand what you’ve said.  

 Mother returned home _____earlier than Father that evening.

—_______ do you usually go to school?— On foot. 

- How often do you visit your grandparents, Tom ?   --__________ 

—Do you know anything about the players of our school basketball team?—Yes. They are _______ young boys between the age of thirteen and fifteen.