I’ll never forget the days ____ I learned hard in my senior high school, ____ changed my whole life[ ]

Too much drinking will do________to your health; you should take the doctor’s advice . [ ]

It is ______ that he has been addicted to the drugs and has difficulty quitting it. [ ]

Since it is expected that Fed will cut interest rate again, there is no doubt ___the company will make the decision on raising the price of crude oil.

She doesn’t send emails_______ watch movieson computer.