13. The voyage diaries were handed down by his great grandfather, so their brothers have kept them as ____ .
No driving after drinking is a rule that every driver _______ obey in our country.
It was a nice meal, _______a little expensive.
It ’s well-known that ________ information is very important to businessmen.
People usually believe thatboy must learn to stand up and fight likeman.
A poet and artist _____ coming to speak to us about Chinese literature and painting tomorrow afternoon.