"Part A" of a homework assignment in Engpsh can be referred to as the "first part" or the "initial part" of the assignment. It could also be called the "A section" or the "A portion" of the assignment.

The use of letters to p different parts of a homework assignment is a common practice in educational settings. It is used to clearly identify and organize the various components of the assignment, making it easier for students to understand and complete the tasks required.

Here are some example sentences in Engpsh that use these terms to refer to part A of a homework assignment:

"Please make sure to complete the first part of the assignment before class tomorrow."
"I'm having trouble with the A section of the homework. Can you help me understand it?"
"The initial part of the assignment was relatively easy, but the rest of it was more challenging."

In Chinese, these sentences could be translated as follows:

"请确保在明天上课前完成作业的第一部分。"
"我对作业的A部分有点困难。你能帮我理解吗？"
"作业的开始部分相对容易，但其余部分则更具挑战性。"