—Have you ever seen two leaves that are exactly the same?—Never. Leaves differ ____ each other ____ size and shape.
In my opinion, ______ wild animals should be allowed to live in ______ wild.
The days are gone _______ physical strength was all you needed to make a living. (2011 .天津)
The school shop, _______ customers are mainly students, is closed for the holidays. (2011 .四川)
We live in an age _______ more information is available with greater ease than ever before. (2012.浙江)
Being able to afford _______ drink would be _______ comfort in those tough times. (2012 .山东)