1: "this" in Spanish is either este or esta, depending on the gender of the subject. Because "canasta" is feminine, the answer is esta.
2: "that" in Spanish is either ese or esa, depending on the gender of the subject. Because "pez" is masculine, the answer is ese.
3: "these" in Spanish is either estos or estas, depending on the gender of the subject. Because "orcas" is feminine, the answer is estas.
4: "Wave" in Spanish is la ola.
5: "those" in Spanish is either esos or esas, depending on the gender of the subject. Because "cerdos" is masculine, the answer is esos.
6: "those" in Spanish is either esos or esas, depending on the gender of the subject. Because "chicas" is feminine, the answer is esas.
7: "this" in Spanish is either este or esta, depending on the gender of the subject. Because "libro" is masculine, the answer is este.
8: "Sand" in spanish is la arena.