根据各题后括号内的要求完成下列各题,每空一词（含缩略形式）.

根据各题后括号内的要求完成下列各题,每空一词（含缩略形式）.
1、Mark dares to tell his mother the truth.（改为否定句和一般疑问句）
（1）Mark () () () tell his mother the truth.
（2）（） Mark () () tell his mother the truth.
2、The boy dare climb the tree.(改为否定句和一般疑问句)
（1）The boy () () () the tree.
(2)() the boy () the tree?