Idioms and Phrases Questions

Based on the situation in the sentence, select the most appropriate idiom.
Although Greta Thunberg gave a moving speech at the UN about environmental damage, it could ___________.

Select the most appropriate option to complete the idiom in the following sentence.
I have a ___________ thumb and I love gardening.

Select the most appropriate meaning of the given idiom.
More or less

Select the most appropriate meaning of the given idiom.
On the back burner

Select the most appropriate meaning of the given idiom.
"Fish out of water"

Select the most appropriate meaning of the given idiom.
"Hit the sack"

Select the most appropriate meaning of the given idiom.
A snake in the grass

Select the most appropriate meaning of the given underlined idiom.
The construction of the office building of the company was taking place in leaps and bounds.