Question

1. When I reached the hall, the picture......... already............... (begin).
2. The show was going on when we .............. (enter) the hall.
3. His hand ............... (shake) as he wrote the letter.
4. How can you ............... (call) me a fool?

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Answer 1

$\huge\bold\red{HOLA!!}$

1. Was, began

2. Entered

3. Shaking

4. Call

Answer 2

1 was began

Explanation:

when I reached the hall