No matter what changes have taken place, nobody can _______the fact that the experiment is a great success.
—I would like to buy an expensive camera. —Well, we have several models_____.
I remember _________the factory owed a small workshop and two machines.
I suggest that that we should take part in more such activities in future _______we did yesterday.
You may depend _________it won’t happen again.
He often keeps English _______ ___________,