几道简单英语语法题1,Psychologists study memory and ___ with animals and human subjects.A learn B learning C to learn D learned2,Animals,although they and some inorganic food ,__ live on it alone.A can B can not C but can D such as3,The rocks are carefully crushed ___ the diamond are not destoryedA because B until C unless D so that4,_____they have gathered plants products the beautiful flowers,the delicious fruits,and the golden grain.A Out of B Out of them C

几道简单英语语法题
1,Psychologists study memory and ___ with animals and human subjects.
A learn B learning C to learn D learned
2,Animals,although they and some inorganic food ,__ live on it alone.
A can B can not C but can D such as
3,The rocks are carefully crushed ___ the diamond are not destoryed
A because B until C unless D so that
4,_____they have gathered plants products the beautiful flowers,the delicious fruits,and the golden grain.
A Out of B Out of them C Out of which D out of what