The cost of organic food is higher than of conventional food because the organic price tag reflects more closely the true cost of growing the food．
A． it B． one C． this D． that
Next door to ours ,who seem to have settled in this community for quite a long time．
A． arc living a black couple
B． arc a black couple living
C． live a black couple
D． do a black couple live
Research found that children who drank mainly soda were more than twice as likely as those who drank no soda signs of aggression．
A． showing B． shown C． to show D． show
I can't remember made the teacher give Mary the permission to leave the class earlier．
A． that it was what B． that was it what
C． what was it that D． what it was that
On their journey, they meet fellow adults in their 20s and 30s lives haven' t lived up to their dreams．
A． who B． whose C． when D． that
I'm not a little tired today after giving the room a thorough cleaning and I have never had today．
A． as tiring a day as B． as a tiring day
C． tiring as a day as D． day as a tiring as
