He, an average citizen, always thinks of_____ he can do more for the people．

 I haven’t had a phone in the house for three weeks now, and it’s several days ____I used a phone box last time. 

Read the passage a second time, ___________ the meaning won’t become clearer to you. 

_______ the paintings of da Vinci, the Louvre Museum has more than 6,000 other European paintings, _______ from the 13th century to the 19th century.

The two boys look so much alike _______no one can tell them apart.