It is generally believed that teaching is ________ it is a science.
The version _______ to be closest to the author’s original now belongs to a national museum in Paris.
There will be more than five proposals __________ at the meeting.
Whatever you do, we are always ________ your side.
On the wall of his office _________the paintings of early French artists.
It was several years later________ an American ship paid the first official visit to the island.