1. The necklace ( might / couldn’t ) be a fortune. But then again, maybe it’s a fake. 2. That handwriting looks like my friend, so he ( can’t / must )

1. The necklace ( might / couldn’t ) be a fortune. But then again, maybe it’s a fake.
2. That handwriting looks like my friend, so he ( can’t / must ) have written this homework.
3. My uncle, ( that / who ) is an English teacher, has been teaching me English since I was young.
4. No, I’m ( scared enough / too scared ). I won’t do it because those snakes are terrible.
5. This building must have been ( more difficult / most difficult ) to build than other normal ones in the area due to its complexity.
6. The Seikan Tunnel is the ( longer / longest ) undersea tunnel in the world.
7. Someone left their baskets on the table. They (must be / could be) worried about losing them.
8. The tuition fee ( might not / must not ) have cost a lot of money.
9. The concert hall is ( big enough / as big as ) to hold 20 people.
10. It’s ( too cold / as cold as ) outside. I need to put on a jacket.