to do & to be done

to do & to be done
there's a lot of work to do
there's a lot of work to be done
这两种说法都对吗?
还有为什么说the museum is said to have been destroyed in a big fire five years ago.
而不说the museum is said to be destroyed in a big fire five years ago.
原句不应该是the museum was destroyed in a big fire five years ago.