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Tenemos que ir a la clínica   Complete the paragraph with the correct form of ser or estar. Pay attention to context to know which verb is necessary. Copy & paste these special characters if needed:   á      é      í      ó      ú   Tomás y Gerardo  [A] hermanos. Ahora [B] en la clínica y [C] un poco nerviosos.  El doctor Marichal [D] su médico. [E] simpático y muy inteligente. Tomás y Gerardo no [F] enfermos, pero hoy [G] el día de su chequeo anual (annual checkup).

A cluster has 5 stars all of which are equally distant.  The 5 stars are a K main sequence star, a K giant, a M main-sequence star, a G white dwarf and a G main sequence star. Which star is brightest?

¡Prepárate!   Ramón’s housemates are helping him clean and prepare for a party. He tells them what they need to do. Complete his statements with the appropriate form of the verbs in parentheses as informal commands. Do not capitalize.  “Humberto, ____________________ (sacar) la basura, por favor”.

Think carefully. Which of the following groups feed on all of the other groups?

One essential feature in hypnosis is that:

Use the following scenario to answer questions 22-24. Chemical X was used widely in the United States as an insecticide for many years. Eventually, research showed chemical X was a persistent chemical that bioaccumulated and biomagnified in the environment. The chemical was later banned from use in the United States. Chemical X was used to kill insects but was found to also affect birds by disrupting hormonal processes. This chemical is a(n) ________________.

The research on the relationship of sleep terrors to age suggests that they occur most often during

A substance that heats up relatively slowly has a:

How can a good marketer change someone’s mind about buying a product?

A substance that heats up relatively quickly has a: