--- How far is the Children's Park from here?
--- Maybe it's about ten kilometres ________.
--Is English very popular ________ science?
--Certainly, it is very popular.
--- How's little Tom ________ at school with his studies?
--- Not very well, I'm afraid.
---Is there ________ in today's newspaper?
---Yes, there is.
--Do you know if he ________ to play basketball with us?
--I think he will come if he ________ free tomorrow.
A:You must work harder from now on.
B:________.