: 1. Paeinsula is a first declension feminine noun. The nouns in that declension take the -is ending in the plural Dative and Ablative case. Therefore, the answers are C and E.
2. Silva is another first declension feminine noun. It takes the -ae ending in the Nominative plural and singular Genitive and Dative case. So the answers here are A, B, and C.
3. The answer here is B, Accusative, because the word LAND is the direct object of the verb prepare in this sentence. The servants are doing something directly to the LAND, i.e. preparing it.
4. The answer here is A, Nominative, because ISLANDS can be substituted for the words Siciliy and Crete. We could say "The ISLANDS are large."
