________ he has many friends, he is often feeling lonely.

The girl was lucky enough to _______ the bad men and ran away.

Scientists doubt wheth er it ’s ________ to regulate one ’s biological clock by drinking.

Motivation and personality may ________ the varying d egrees of success in one ’s career.

You’ll be there tomorrow -- you won’t ________ me ________, will you ?

She was ________ be unable to speak

Neither English nor Chinese ________ difficult to learn.

The visiting minister expressed his satisfaction with the talks, ________ that he had enjoyed his stay here.

As for family education, parents are encouraged to rely on ________ rather than punishment.

Why couldn ’t you ________ an answer when I asked you why you were late?