Exercício: para o Vestibular de inglês

Complete the following text with the correct form of the verb:
A long time ago London __________ an important city, but it __________ different from London today. There
__________ not very many big buildings. There __________ a lot of small boats on the river.
a) is, is, are, are
b) was, is, are, are
c) was, was, were, were
d) was, is, were, were
e) had been, is, were, are
London, big buildings, small boats does not refer to things or animals (it)?

- PUC 1997
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Avatar do usuário Word Moder 450 9
diogorenato,

It seems that you already answered the question in bold!
I am not that in favor of people just putting questions like that without trying to answer themselves first because for us to give you the answers would not do any good for your learning process.
Anyway, the two most probably answers are: (c) and (d)
Why is not (d)? Because they are talking to a time in the past tense.

A long time ago London was an important city, <----past tense
but it was different from London today. <----still in the past tense
There were not very many big buildings. <---- continued in the past tense
There were a lot of small boats on the river. <------ to agree it must finish in the past tense since we still talking about the past.