问题补充：
Peter received a letter just now his grandma would come to see him soon.
A. said
B. says
C. saying
D. to say
答案：
A. said
B. says
(答案→)C. saying
D. to say
解析：此处用现在分词表伴随，又如：A card came yesterday saying Sue will arrive tomorrow. 昨天收到的明信片上说，休明天到。Alan received a telegram saying his father was ill. 埃伦收到一封电报，说是他父亲生病了。
