题目：
多选题
About the Zhang Sizhong Method, which of the following are correct ?
- A. With individualized instruction, students of different abilities can achieve whatever they are capable of.
- B. Repeated reinforcement or consolidation is a must to successful learning.
- C. Reading books in the original is a means as well as an end in foreign language learning.
- D. Itˊs necessary and possible to teach sounds, words and grammar rules in large numbers.
答案：
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