—Bob, look what you have done! You ruined the experiment.—It’s not my fault. I just carried out the instructions _____.
The teacher told him to speak louder __________ by everybody.
Although she did not know Boston well, she made her way __________ to the Home Circle Building.
Although he knows clearly that smoking harms his health, he simply cannot __________.
There is no doubt that by recycling textbooks, the cost of books will be __________ greatly.
I agree with most of what you said, but I don't agree with __________.