As far as I know, this is a type of music popular in the 1950s, a(n) _____ of jazz and folk music.
| A．mixture | B．tradition | C．practice | D．invention |
Some people argue using _____ nature to meet our own needs may spell disaster, unless we start to look around and understand how ______ clean environment benefits us all.
| A．/; a | B．the; the | C．the; a | D．a; a |
—Sorry, I’m afraid that I can’t go to the magic show by David Copperfield with you.
— _________！ Who knows when he will be back here again ?.
A It doesn’t matter B Do as you like C What a shame D Take it easy
It was ____ great shock to the world that two airplanes crashed into _____ World Trade Centre in New York on Sept.11.
A a; / B the; the C a; the D / ;the
I received a letter yesterday that my mother would come to our school.
| A．said | B．says | C．saying | D．to say |
—What do you think of his story in the forest?
— , I can’t believe it.
| A．Attractive | B．Obvious | C．Cheerful | D．Ridiculous |