1 . Steven is best fit for the job. He ________ (精通) English, French and Spanish since he was in senior high.

2 . So far, dozens of Chinese-Palestinians successfully ________ (逃离) from the Gaza Strip torn apart by the war, which is quite a relief for their families.(根据汉语提示单词拼写)

3 . My parents got married 15 years ago.(改为同义句)
My parents __________ __________ married for 15 years.

4 . 说到教育，网课已经给学习方式带来了很大的改变。(When it comes to…) (汉译英)