【2014年四川省乐山市中考】
根据下列句子的句意、汉语提示或英文解释，写出空白处所缺单词的正确形式；每空一词。
Olivia likes to play the ________(钢琴) to relax herself after doing homework.
The word OK is one of the most ____________(广泛地) spoken expressions in the world.
Jim wants to buy a new iPhone. It will ______(花费) him more than 5000 yuan.
Can you imagine a life _________(not having) phones or the Internet?
Don’t believe in a ________(a person who is not familiar) or online information easily.