How ______ is it from the railway station to the museum?

I wasn’t blaming anyone; I           said errors like this could be avoided.

Progress so far has been very good．We are,    __, confident that the work will be completed as expected．

.-----How do you find the dictionary? -------It’s useful,_________for beginners of English.

The latest model of camera can           brings the object into focus, with which even a child can shoot very well．