1. Yes, we can use all the sentences mentioned.
2. No, sentence #1 does not exactly mean #2. Sentence #1 instructs to read and translate each sentence, whereas sentence #2 specifically instructs to translate each sentence into Korean. So, while sentence #2 includes the task of reading and translating, it focuses on the specific language of translation being Korean.
3. To fulfill the requirement of sentence #4 and find simple sentences that convey a similar meaning, we can use the following examples:
- Read and translate one sentence at a time, followed by translating the second sentence into Korean.
- First, read and translate the opening sentence. Next, proceed to translate the second sentence into Korean.