问题
选择题
—I knocked over my coffee cup. It went right over _________ keyboard.
— You shouldn't put drinks near _________ computer.
A．the;不填
B．the;a
C．a;不填
D．a;a
答案
答案：B
keyboard表示特指, 特指双方心目中的那个键盘, 所以要用定冠词the。computer表示泛指, 所以要用不定冠词a。