Go over the story translation.
"But Miss Ouellette, that is a lot of work and I want to get this done really fast"
Don't be a silly goose. 30/50 of the points on your test are on comprehension. This means 60% of your grade depends on how well you understand the events of this story, which is dependent on how well you translate it.
I am not saying you need to write the entire translation out, but I am nice enough to give you the story before the test instead of making you figure it out as you take it, so please do SOMETHING with it. You will thank yourself when you get your grade back.