Along the either side of the street _______ two lines of trees.
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
With his eyes ______ on the family album, he thought of the fun he had when he lived with his parents.
Postage ______, the necklace will cost you at least 650 yuan.
We all think that _____ no need to make laws to prevent the young from getting married during their college life.
Everyone hopes that we can do something to make things better, so we can't help ______ under the stress.