A. 100 metres wide.        
B. 100 metre wide  
C.100-metre-wide          
D. 100-metres-wide

There are three              students in our school.

A. thousands
B. thousands of
C. thousand
D. thousand of

1. When he was in his ______ (四十多岁), he took an active part in the battle
     against the Qing Dynasty.
2.  There are many new ______(发现) in recent years.
3. Spitting in public is  ______  (禁止); everybody should have     good habits.
4.  It's ______ (必要的) for us to master computer technology.
5. ______ (大体) speaking, different star signs have different  characteristics.
6.  An old man was found ______ (躺在) on the road.

[     ]

A. thousand
B. thousand of
C. thousands of
D. two thousand of

A. hundreds of
B. hundred
C. hundreds
D. hundred of

A. two thousands of
B. two thousands
C. two thousand
D. two thousand of

[     ]

A. hundred
B. hundreds
C. hundreds of
D. hundred of

A. three thousands
B. thousands of
C. thousand of
D. three thousands of

A. million of; two millions    
B. millions of; two million
C. millions of; two millions  
D. million of; two million

A. Several thousands of  
B. Ten thousands    
C. Thousands of    
D. Thousands