You’ve dropped ________ “s” in the word “necessary”.— Oh, ________ letter “s” is doubled.

I’m thirsty now. Could I have hot water? –OK. Here you are.

____ do you go to your school library?—Three times a month. [ ]

What does the symbol “<” mean? —It means “______”.

Can I watch TV, Mom? —–No, you . You to do your homework first.