Ответ:
2) They believe it HAS existed .....
Объяснение:
Present Perfect
____________________________
I> HAVE
He >
She > HAS
It >
You >
we >. HAVE
they >
после чего глагол ищем в третей колонке неправильных глаголов или окончание “ed”
тоисть
noun+ (have/ has)+ V3
Двигаться-move-moved
защищать-protect-protected
становиться-become-became
появляться-appear-appeared
промазать-miss-missed
приходить-come-came
понимать-understand-understood
слушать-hear-heard
искать-find-found
путешествовать-travell-travelled
2. What time ---(do the banks close) in Britain?
3. 'Where ---(does Martin come) from?' 'He's Scottish.'
4. 'What ---(do you do)?' 'I'm an electrical engineer.'
5. It ---(takes) me an hour to get to work. How long ---(does it take) you?
6. I ---(plays) the piano but I ---(do not play) very well.
7. I don't understand this sentence. What ---(does this word mean)?