Incorrect you would need to say this so it would be grammatically correct miramos a el barco en el lago
<span>Tú oyes ___ tu mamá.
The "personal a" is necessary.<-------
The "personal a" is not necessary.
(with a)you hear your mom
(without a)you listen to your mom</span>
In English: A Mexican biological research center (1) to carry out a project in a mountainous area of Colombia. Six scientists from the center travel to that country for six months to investigate a population of monkeys. The scientific group (2) to monkeys with a contagious disease, and that's why its members (3) vaccinations before traveling. The community that awaits them (4) the details of the investigation when the experts arrive. In addition, the team (5) to the inhabitants measures of prevention against the disease. The scientific team expects the recovery of monkeys in the region and says that many new babies (6). They do not doubt that the disease (7) forever and the living condition of the monkeys (8) Scientists carry food (food) for expeditions outside the community, but in a few cases (9) edible birds that are not in danger of extinction. Surely, researchers (10) many useful data.
