He was faced with the of whether ornot to return to his country after he got the doctor’s degree in America．

ntain a nice relationship, both sides are advised to focus on _______ they have in common.

The government will __________ the countrythrough the difficulties ahead.

New technologies have made ________ possible to turn out new products faster and at a lower cost. [ ]

The old man looked at the photo to his memory of the days when he lived in the countryside.[ ]