Attempts allowed: 2
Grading method: Highest grade
练习 3.4 Finding a Main Idea (1)
练习 3.4 Finding a Main Idea (1)
Completion requirements
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Directions： Follow the steps mentioned in the video and decide whether there is a topic sentence in each paragraph. Choose the sentence number that stands for the topic sentence if there is one and choose "no topic sentence" if there is none.