在列车占线程序实绩图中，列车晚点出发表示为（）。
A、黑圈
B、红圈
C、蓝圈
D、蓝三角
参考答案：C
用所给词的适当形式填空。
1. He (go) to the park yesterday.
2. What is Jenny doing now?
She is (read) a story book.
3. I have many (gift) for you.
4. Did you (have) a nice trip?
5. Let's (give) them some apples.
恢复过程
