It was in 1969 ______ two Americans went to the moon by spaceship.
Don’t be______by products promising to make you lose weight quickly.
You don’t have to know the name of the author to find a book. You______find the book by the title.
Many workers were organized to clear away ________ remained of the World Trade Center.
Some of the scientists held the point________ the book said was right.
Was it ________ the conference of APEC that made Shanghai the focus of the world then?