David is so curious that no one can ________ from finding out what is going on.
I wrote to my parents once a week,____ I was too busy with my teaching work.
However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.
--- He has to finish the experiment today. He must be in the lab,____?---That s quite possible.
Let us suppose that you are in____ position of____ parent. Would you allow your child to do such a thing?
In salad bars the waiter does not bring you salad. You have to____ yourself, usually to as much as you want.