—He has a lot of friends who have a lot in ________ common with himself.
—Indeed.Birds of ________ feather flock together.
A.the; / B.the; a C./; a D.a; the
Finding information in today's world is easy.The ________ is how you can tell if the information you get is useful or not.
A.knowledge B.ability
C.competition D.challenge
Friendship is both ________ source of pleasure and ________ component of good health.
A.a; a B./; / C.the; a D.a; the
As ______ mountains surrounding our village are turning much greener, they have become ________ home to a large number of wild animals.
A.the; / B.the; a C./; a D.the; the
.—You've dropped ________ “s” in the word “acros”.
—Oh, ________ letter “s” should be doubled like this “across”.
A.a; a B.an; a C.an; the D.the; the
We Chinese have a dream— ________ dream to turn a welloff life into ______ reality by 2020.
A.a; / B.the; / C.a; a D.the; the