G- present perfect vs simple past

George Orwell _____ the novel 1984 in 1948.

• has written

• wrote

• have written

• writes

Yesterday, I ____ Holly at the swimming pool.

• have met

• has met

• met

• meet

Ouch! I ____ my finger.

• have just cut

• has just cut

• just cut

• just cutting

____ you ever ____ snails?

• Did/eat

• Have/eaten

• Have/eatten

• Did/ate

My grandfather, who died last year, ____ in a plane.

• has never flown

• never flies

• never fly

• never flew

Is this your first visit to Singapore?

No, I ___ here once before.

• were

• have gone

• have been

• has been

My mother ____ her best friend for over twenty years now

• knows

• has known

• knew

• was knowing

Miss Lin ___ working in this school five years ago.

• starts

• started

• has started

• have started

The teacher _____ us any homework on Friday.

• hasn't given

• haven't given

• didn't given

• didn't give

I _____ from Aunt Betty for over two months.

• didn't hear

• haven't heard

• didn't heard

• hasn't heard