Answer:
The correct way to complete the sentences are as follows:
1. Marcela found the sandals under the bed.
2. Gustavo received a very nice gift.
3. Sara and Viviana finished the book at the same time.
4. The travel agent prepared a very interesting itinerary.
5. I am going to visit the city in winter.
6. Dependents listen to the game on the radio.
Explanation:
Conocer = to be familiar with (usually a person)
Saber = to know (a fact/etc.)
1) termínan
2) dibúja
3) manipúla
4) amàmos