Of all the students, Li Lei is _______to Mr Wang.

Is there anything I can do for you?—There seems to have been a technical problem—______，that’s what they told me

esident of the World Bank says he has apassion for China ,he remembers starting as early as his childhood.

Lanzhou is the only capital city that the YellowRiver, the second ________ river in China, passes through.。

Why do you call him Mr．Knowledgeable— Because he knows almost everything we want to know．