Ⅰ.单句语法填空
1．The king showed no mercy ________ the prisoners and killed all of them.
2．Tickets for such events will ________ (typical)cost around thirty dollars.
3．He searched the room carefully，only ________(find) nothing.
4．They walked off and left me ________ (sit) there alone.
5．He's got the right man and wants to try him ________ on the job.
