---Mum, when shall we go to the zoo?---Sorry, I will have a meeting today. ________ Saturday ________ Sunday is OK.
It is she who _________ me with my English every day.
As a student, I can’t afford __________ a new mobile phone.
English is not easy, but I never __________.
Your help made __________ for me to work out this problem.
I don’t think _______ Maths is easy.