Question

Помогите пожалуйста!
       Past Simple or Present Perfect?1)      We already _______ the Zoological Society of London. (join)
2)      Our class _______ to the Zoo yesterday. (go)
3)      Last year my family _____ to the Black Sea.  (go)
4)      She just ______ from Italy. (return) She _____ there last year.
5)      Yesterday they ______ a party. (have)
6)      Last week we ______ a composition. (write)
7)      I ______ to Boston yet. (not be)
8)      The pupils _____ the new rule last Monday. (not understand)
9)      Kate and Jess _____ a nice cat recently.
10)   Two days ago my friend and I _____ an UFO. (see)

Answer 1

have joined
went
went
has returned, returned
had
wrote
have not been
did not understand
эм.. тут РS должно быть, но глагола нет
saw

Answer 2

1)      We have already joined the Zoological Society of London. 
2)      Our class went to the Zoo yesterday. 
3)      Last year my family went to the Black Sea. 
4)      She has just returned from Italy. She was there last year.
5)      Yesterday they had a party. 
6)      Last week we wrote a composition. 
7)      I haven't been to Boston yet. 
8)      The pupils didn't understand the new rule last Monday.
9)      Kate and Jess have bought a nice cat recently.
10)   Two days ago my friend and I saw an UFO.