The school day ______ at half pastseven every morning.

He handed in the essay two days later than his classmates，but it was still _____the time limit set by the teacher

下列各组句子中加点的字意思相同的一组是（ ）

New ways have to be found to ______ wildlife being endangered. Which of the following is not OK?[ ]

________ is mentioned(提及) above, the number of the students in senior high schools is increasing.