a) Agatha Christie lived from 1890 to 1976.
b) Has Helen ever tried sushi?
c) Did you go to the wedding last night?
d) I have never been to Miami.
e) When I was in Cuba, I saw turtles but I didn't see any lions!
f) Have you finished your homework yet?
g) John didn't call me yesterday.
h) I’m worried… They haven't came back yet.
i) Did he read Harry Potter?
for a month for 2 years.
since 1990 since 5 o’clock.
for 3 weeks since I met her.
since April for a long time.
since this morning since their childhood.
for a day since I was born
