A low firm tone not to high not to low
"a testimonial" would most likely include positive information about one side of an issue, although it should be noted that this is not always the case with testimonials.
Answer: They feel like they are not being heard.
There was a stunned moment of silence following Millicent's proclamation.
You can join the sentence in this way:
<em>Disappointed by not being able to picnic by the river, they went home sadly.</em>
