—Oh, I've just locked my keys in my office again.—You're always so careless, but ________ let's see what we can do about it.
_______I know , the computer can never take the place of the human brain.
I paid only 5 pounds for the book , _______I expected it would cost.
_______ you have got used to it , you’ll like it .
We’ll carry the work through , cost _______ it may .
Persist to the end , _______ you are the only one left.