I really don’t know _____ I put my wallet after I paid the bill.
Some 80,000 people were reported ________ in the ever recorded worst earthquake in that area last month.
In many factories computers have ___________ the work of thousands of workers.
Nowadays, scientists are working hard to find a best way of treating addictions __________ drugs.
My doctor recommended that I _______ more exercise.
As a teacher you should _________ your method to ______ the needs of slower students.