_______ on earth do you suppose_______ this

You’d better not read today’s newspaper because thereis _____ .

58. It is said that a collection ofpaintings by David is _____ exhibition at the Museum.

When he was alive, the old scientist used to say that knowledge ____ from practice and he gained his experience by doing a lot of practical work

So amusedthat I couldn’t help laughing when I saw the performance given by the children．