Question

Answer 1

1 B => what had happened

2 D => didn't they

3 B => was built / was being built

4 B => Where to find

5 B => bỏ

Answer 2

1. B \(\rightarrow\) Ưhat had happened.

2. D \(\rightarrow\) Didn't they.

3. B \(\rightarrow\) Ưas built .

4. B \(\rightarrow\) Where to find

5. B \(\rightarrow\) \(X\)