B )1.From the letter we know that one school will hold the summer courses in A.Canada B.the US C.Japan D.England C )2.How old was Mariko Kobori when he started to learn English? A.18. B.14. C.12. D.6. 导航页导航页 ( )1. From the letter we know that one school will hold the summer courses in . A. Canada B. the US C. Japan D. England ( )2. How old was Mariko Kobori when he started to learn English? A. 18. B. 14. C. 12. D. 6. B C