Yo busco la maleta perdida. yo (2 palabras) la maleta perdida.

- Estoy buscando.

Explanation:

In this task you have to complete the blank with the appropriate tense of the verb. In this case you have to use the present progressive tense. So the correct option here would be "estoy buscando".

The present progressive tense is formed with subject + verb "estar" + verb "-ando, -iendo". In this case the subject is the first person "yo" so the sentence must be completed as in the following example:

- Yo estoy buscando la maleta perdida.

ancient india is often called the harappan civilization because one of the ancient cities was called harappa. harappa was just one of 1500 cities in the indus river valley. another well-known city is called mohenjo-daro. historians estimate ancient india to be the biggest of all four early civilizations.