There are many kinds of metals

There are many kinds of metals

1. There are many kinds of metals, ___.

A.each having its special properties

B.having its special property

C.one has its special properties

D.each has its special properties

.标准答案：A

2. The discovery of the fossils _______our understanding of the growth of the human brain.

A.added to                   

B.added on                   

C.added up to                

D.added up                   

.标准答案：A

3. The date of the meeting has been _____ from the 5th to 8th June.

A.postponed                  

B.advanced                   

C.put forward                

D.brought off            
   
.标准答案：A