B4

In January 2003, the Congestion Charge was introduced in London to help solve the city’s traffic problems.
(past simple passive, т.к. действие произошло в определённое время в прошлом. Был представлен, а не представил кого-то)

INTRODUCE

B5

However, London’s motorists still have traffic problems, crawling through the city’s streets. London is just as congested with cars as it was before the introduction of the traffic charging scheme.
(ползая по улицам города)

CRAWL

B6

‘Without the Congestion Charge the traffic problems in London would be much worse now,’ said the TfL’s Managing Director.
(степень сравнения)

BAD

B7

‘It has already proved successful in cutting traffic coming into London.’
(present perfect, т.к. это цитата. Действие происходит в настоящем для той ситуации)

PROVE

B8

However, on its own, the traffic charging scheme does not resolve the problem of congestion in the city. London streets remain clogged by road works and other measures designed to help pedestrians, buses and cyclists.
(present simple, т.к. это общее утверждение)

NOT RESOLVE

B9

Mayor of London Boris Johnson says he now is working with TfL on a ‘comprehensive approach’ to ease the congestion problem.
(present continuous, т.к. он работает в момент повествования)

WORK

B10

He believes that the government soon will impose new measures to eliminate traffic congestion.
(future, будет вводить новые меры по …)

IMPOSE