Choose the most suitable article a/an/the/0 (no article) to complete the sentences.
 1) Last month they visited St. Paul’s Cathedral and a/an/the/0 Tower of London.
 2) Carol’s father works as a/an/the/0 electrician.
 3) I’d like a/an/the/0 orange and two lemons please.
 4) A/An/The/0 President of a/an/the/0 Ukraine is giving a speech tonight.
 5) We went to a/an/the/0 most expensive city in the world.
 6) The/A/An/0 British Prime Minister lives in a/an/the/0 Downing Street 10.
 7) A/An/The/0 Japanese language is often heard in the countryside.
 8) It was a/an/the/0 cold Saturday morning at beginning of a/an/the/0 month.