-----Do you know where David is ? I couldn’t find him anywhere.-----Well. He _______have gone far-----his coat’s still here.
8.The CCTV Tower, _______ the base is an electrical equipment shop, is frequently visited by travelers.
7.—Who would you rather _______ with you for holiday? —A man _______ himself Wilson.
6.Oh, it’s so cold in here. Somebody _______ the window, please.
5.—Do you feel Professor Wu’s speech on finance easy to understand? —Just the opposite. It’s _______ for me.
4.Politeness is a(n) ____ phenomenon among all the social groups, but it is marked by different cultures.