单词拼写 ：每空一词（每小题 0.5分，共 5分）The speech contest will be held next Friday. I must make full p____ for it.
Tom is so anxious that he can’t ____ (专注)on his teacher’s lessons.
Why are you late again? You are s__________ to have been here 30 minutes earlier.
China is a developing country ________to the Third World.
After her dead body was found in the office, not far away from her home, the police still felt amazed at her __________(无法解释的) death.
We will not give up until we find c___________ evidence.
In one case, a group of engineers ran after the creature, which moved with amazing speed and s_________.
In his opinion, this animal went to other parts of the world, and continues s_________ even today.
Nobody knows for sure when the world came into ____________(存在)。
You must follow the doctor’s advice and take the medicine r__________— three times a day.