ESL resources
approximation
Approximation
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Approximation expressions quiz
Seventeen-question MC quiz testing approximation expressions from Unit 1 of Straightforward Advanced.
Seventeen-question MC quiz testing approximation expressions from Unit 1 of Straightforward Advanced.
![Straightforward Advanced Student's Book book cover](graphics/bookcovers/sf_ad_sb.png)
Straightforward Advanced Student's Book
1B First day Page 8 Speech feature: approximation