Question

I was surprised ________ his behaviour.
I was surprised ________ the wonderful exhibition.
I was amused ________ the clown.
I was amused ________ her joke.

Fill in prepositions

Answer 1

1.by

2.at

3.by

4.at

Hope this helps you

Answer 2

1) I was surprised by his behaviour.

2) I was surprised at the wonderful exhibition .

3) I was amused by the clown.

4) I was amused at her joke.

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