Present Perfect Exercises

SINCE OR FOR?
Since desde ( ponto específico)
For por , há ( tempo decorrido)
for
a) We have lived there ________________ two years.
b) We have lived there _______________ since last year.
c) The bell has rung _________________ for
half an hour.
d) Nobody has written to me _________________ for many weeks.
e) It has rained _________________ since tree o’clock.
f) We haven’t spoken Spanish _________________ since last Christmas.
g) I haven’t eaten any meat _________________ since I was a boy.
h) It has rained _________________ for two hours.
i) I haven’t seen you _________________last Sunday.
since