Put the verbs in brackets into the correct tense and voice
The houses of parliament is the seat of the British Parliament, a great mass of buildings on the east bank of the Thames in London. It _______ (to build) in the 19th century after plans by sir Charles Barry. The houses of parliament________ ( to include) three massive towers Victoria tower, middle tower and saint Stephen or the clock tower which _________(to contain) a clock and a great bell, Big Ben, weighing 13.5 tons. There _______( to be) also the house of peers, the house of commons ,the residence of the speaker, the libraries and the offices. In world war ii the buildings ____________(to bomb) heavily and seriously ______________(to damage).