Unexplained

• CEFR B1
• Reading
• Printable
• Answer key

Unexplained is a printable reading worksheet for English language learners at CEFR level B1. It covers Modals of Possibility: may, might, could (present and past speculation), with 5 exercises and an answer key.

Some questions have no answers — at least not yet. Around the world, there are places, objects, and events that science has never fully explained. Here are three of the most famous.

What's in this worksheet

1. Reading for Gist
2. Reading for Detail
3. True, False, or Not Given
4. Vocabulary in Context
5. Grammar in Context