1. If you don’t know the new word, why don’t you________in the dictionary?
A. look at it B. look after it
C. look up it D. look it up
答：D。look up(在词典、参考书中)查寻。副词与动词构成的词组与人称代词连用时，将人称代词放在中间。A和B项与题童不符。it指前文提到的事物。
2. There comes the bus, _________?
A. doesn’t there
B. does it
C. doesn’t it D. isn’t it
答：C。让指the bus。
