This piece of music is ________________ that one.

I called ________ his house this morning, but he wasn’t inSo I left a message telling him I would call______ him the next day

As these new products are not selling well, the members of the board have decided to _________production.

he was investigating ways to improve the telescope, Newton made______ discover which completely changed______man’s understanding of colour.

_______he couldn’t understand was_________more and more students showed interest in the computer games.