Sure! Here are the closest meanings for each of the sentences provided:

**60. My brother's hobby is collecting stamps of ASEAN countries.**
- **C. My brother used to collect stamps, but now he is interested in ASEAN culture.** (This indicates a shift in interest.)

**61. Do you mind sharing some information about ASEAN scholarships?**
- **C. Could you share some information about ASEAN scholarships?** (This is a polite request for information.)

**62. ASEAN has succeeded in maintaining peace and cooperation in the region.**
- **D. ASEAN has managed to maintain peace and cooperation in the region.** (Both express success in maintaining peace.)

**63. Participating in the ASEAN Youth Forum last year was unforgettable for Mai.**
- **A. Mai can never forget the ASEAN Youth Forum she participated in last year.** (Both sentences express lasting significance of the experience.)

**64. My father's work involves travelling in ASEAN countries.**
- **B. My father's work is connected with travelling in ASEAN countries.** (Both indicate that his work is related to travel.)

**65. Following these rules was more complicated than I expected.**
- **C. I didn't expect that following these rules was so complicated.** (Both express unexpected complexity.)

Let me know if you need any further assistance!