the environment of fiercecompetition, the only way John could imagine _______ stress was to get tougherby making greater efforts

it Ann’s husband over there—- No, it ______ be him—I’m sure he doesn’t wearglasses

SorryI ________ to post the letter for you—Never mind________ it myself after school

The Golden Gate Bridge, _______ several hundred years ago, is worldwide famous.

Maria has written two novels, both of ________ have been made into television series.