选择适当的词并用正确形式完成短文，使短文内容完整、正确。（每空1分，共10分）

Sometimes  write   how  that  if  mean  sure  until  but   make  what    think

 
Some people remember the things by _________ notes to themselves. Then they leave the notes in obvious(明显的) places, such as on the table or on the floor in the middle of the living room. I don’t _____________I like to write notes to myself. Most of the time I lose them or forget to look at them ____________ it’s too late. I prefer to use an alarm clock（闹钟) to tell me ________________ I should do. I have ten alarm clocks in my house. They could tell me about things. For example, if I have to ______________a telephone call at a certain time, I’ll set an alarm clock to go off a few minutes early and put the clock by the telephone. Or ______________I want to watch a certain television program, I’ll set an alarm clock at the right time and put the clock on top of the TV set. I can remember almost anything if I use my clocks. However,____________ an alarm clock goes off and I don’t know what it____________. I always remember setting it, but not why I set it. If the clock is by the telephone, I know I may have set it to tell me to call someone, but I can’t be ___________. I might have set it to tell myself _________somebody was to call me at a certain time.