2 readings a B1 level THEN a B2 level with the same questions- and an Engineering Extension: The Science Behind Supersonic Flight. there are general questions and a general vocabulary exercise with DISCUSSION QUESTIONS. 

2-readings-b1-and-b2-with-same-questions-concorde-with-engineers-worksheet-extension-concorde_165724.docx

2 READINGS (B1 and B2 ) with same questions-CONCORDE -with ENGINEERS WORKSHEET EXTENSION CONCORDE

2-readings-b1-and-b2-with-same-questions-concorde-with-engineers-worksheet-extension-concorde

Let's do English ESL general vocabulary practice. 2 readings a B1 level THEN a B2 level with the same questions- and an Engineering Extension: The Science Behin…