根据题目要求完成下列任务，用中文作答。教师课堂中纠错的意义及策略有哪些？
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__________ your valuable help, we couhtnt have finished the experiment ahead of time．
A. If it were not for
B. Had it not been for
C. Were it not for
D. If it has not been for
When a teacher teaches young learners English pronunciation, he should__________.
A. listen as much as possible
B. input regardless of studentsability
C. tolerate small errors in continuous speech
D. read more English materials
Which of the following is a slip of tongue
A. No cross, no crown．
B. No pains, no gains．
C. No sweat without sweet．
D. No smoke without fire．
Which one is the schools mission and characteristic of the course？
A. Local course
B. School-based curriculum
C. National curriculum
D. Subject curriculum
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