The manager told us that very little ____ was made of the waste material in the past.
.--How much did you ________for the pen? --Five yuan.
Could you _______ me your bike? Mine is broken. --Sure. It's there.
-- The problem is too difficult, can you show me ______ , WangLe? -- Sure.
I ________a very interesting programme on the radio this morning.
Our knowledge of computers ________ growing all the time.