Help __________ to the cakes I made, my children.

—Yesterday I lost my pencil sharpener.  I couldn’t find_______.—Oh, it’s a pity. You’d better buy ________ this afternoon.

We carefully compared the result of the first experiment with_______ of the second one.

______ is impossible if you put your heart into it. 

--- Mum, have you seen my mobile phone?    ---_______you bought last week? I’m sorry I haven’t seen _______.