1) The invitations ... already been posted.

1. is
2. was
3. were
4. will be
5. have

2)The Brothers Karamazov ... written by Fyodor Dostoyevsky.

1. is
2. was
3. were
4. will be
5. have

3) The museum ... opened by the mayor next week.

1. is
2. was
3. were
4. will be
5. have

4) The site ... visited by thousands of tourists every year.
1. is
2. was
3. were
4. will be
5. have

5) Two buried statues ... found last Monday.
1. is
2. was
3. were
4. will be
5. have

Відповідь:

1)have

2)was

3)will be

4)was

5)were

Пояснення:

1. Have (we use present perfect because we talk about the result)

2. Was (we use past simple because it was made in the past, we use singular form because we are talking about a novel)

3. Will be (we use future simple because there is a time marker next week)

4. Is (we use present simple because there is a time markerevery year)

5. Were (we use past simple because there is a time marker last Monday, we use plural form because we have "2 statues")