andverbial modifiers of time:
On the 25th of December we celabrate Christmas.
The first space flight was made in 1961.
adverbial modifiers of place:
The exhibition was opened in Paris.
I saw him among the sportsmen.
adverbial modifiers of purpose (nolūka apstākļi):
I've come to thank you for your kindness.
adverbial modifiers of reason (cēloņa apstākļi)
We stayed in because of the snowstorm.
adverbial modifiers of degree ( mēra apstākļi):
Life has greatly changed since the War.