Question 1 with 1 blank—¿qué haces, juan? — mis llaves. question 2 with 1 blanklos turistas fotos con sus cámaras digitales. question 3 with 1 blanktú porque estás muy cansado. question 4 with 1 blanktenemos hambre. una pizza. question 5 with 1 blank—el huésped las ventanas de la habitación. —pero, ¿por qué? ¡hace mucho frío!

1. Busco

2. Toman/ sacan

3. Descansa

4. Comamos/ Pidamos

5. Abre

Explanation: There are different forms of saying "take a photo" in Spanish, in some countries they say tomar una foto and in other countries they say sacar una foto. In the exercise 4, comamos is the correct answer if you want to say "let's eat a pizza" but if you want to say "let's order a pizza" the correct answer is pidamos.

1. Busco.

2. Sacan / toman.

3. Descansa.

4. Pidamos.

5. Abrió.

Explanation:

Question 1.  —¿Qué haces, Juan? — Busco mis llaves.

You have to use the present tense of the verb "buscar" because it is something Juan is doing a the moment. Besides you must conjugate the verb using the first person  in the singular form "yo" (I).

Question 2. Los turistas sacan /toman fotos con sus cámaras digitales.

Here you can use the verb "sacar" or "tomar" because they are synonyms in Spanish. You must conjugate the verb you have chosen using the third person in the plural form "ellos" (they).

Question 3. Tú descansa porque estás muy cansado.

Here you must conjugate the verb "descansar" using the present tense and the second person in the singular form "tú" (you).

Question 4. Tenemos hambre. Pidamos una pizza.

In this case, you have to conjugate the verb "pedir" using the present tense and the first person in the plural form "nosotros" (we).

Question 5.  —El huésped abrió las ventanas de la habitación. —Pero, ¿por qué? ¡Hace mucho frío!

In this case you have to conjugate the verb abrir using the past tense and the third person in the singular form "él" (he).

The English translation would be like this:

Question 1. —What are you doing, Juan? - I'm looking for my keys.

Question 2. Tourists take pictures with their digital cameras.

Question 3. You have to rest because you are very tired.

Question 4. We are hungry. Let's order a pizza.

Question 5. — The guest opened the windows of the room. -But why? It is too cold!