Complete the sentences.Use the Past Simple and the Present Perfect.
1.a)He ______ lost of photos of different places.Now he can take part in the photo exhibition.(take)
 b)Yesterday,he went sightseeing and _______ lost of photos.(take)
2.a)________ you____________ the novel yet? Is the worth reading.(read)
b)When __________you____________the book?-Last summer.(read)
3.a)_______you_________ to the new park?-Not yet?(be)
b) I__________theere 3 months ago.(be) 
4.a)She_________her classmates to her birthday party.There will be lost of guests,won't theere?(invite) 
b)Julia________her friends to the park yesterday.They had a picnic.(invite)