Answer:
¡Pongámosla!
Explanation:
<u>¡Pongámosla!</u> (la mesa) = Let's set the table!
It’s c. Mandaste because it’s asking if you had sent the postal card to your family
un libro nuevo<span>a new book (masculine singular)dos libros nuev</span>ostwo new books (masculine plural) una mesa nueva<span>a new table (feminine singular)dos mesas nuev</span>as<span>two new tables (feminine plural)</span>
It's :I am 15 years old........
The clock or time
Hope this helps :)