El sistema métrico es un sistema de medición decimalizado reconocido internacionalmente.
kilo 1,000
hecto 100
deca 10
(unidad base) -
deci 0.1
centi 0.01
mili 0.001
 
        
             
        
        
        
1. Fuimos 
2. Leo
3. escribió 
4. Hice
        
             
        
        
        
Answer: 
The present progressive, also called the present continuous, is formed with the verb BE conjugated in the simple present followed by a present participle. This is the formula: Subject + BE + (verb+ing). Before you continue, review these lessons: Verb BE | Present participle.
Explanation: