__________ do I have to change the robot’s batteries? —Every two months.
In the car market, I have to choose ____ because I don’t have enough money for my favourite.
Please send ______ my best wishes when you go to visit your grandparents.
Can you lend me your bike?— Yes. But you can only ________ it for one day. Because I’ll ride it to school the day after tomorrow.
What do you think of the film Avatar? —–I think it’s ______ , but someone thinks it’s much too ______.