______ the best of my knowledge, this system cannot work automatically.

She swam strongly and_______ cross the river easily, even though it was swollen by the heavy rain.

The expression on your face can actually dramatically alter your feelings and perceptions, and it has been proved that (1) ____

Doris tiptoed up the stairs because she didn’t want to wake anyone up.

To ______________________________________________________________________________________.

You should consider the fact that he hasn’t spoken French for years. (allowances)

__________________________________________________________________________________________

Doctor Pike ______ the hospital after he ______an uneventful evening on duty. He ______ of his day of rest.

Women who are slimming can never enjoy a meal without being afraid of ______________ their diet. (organize)