问题
选择题
I often have conversation with John over _____ phone, but keep in touch with Tom by writing _____ letters.
A．/; the
B．/; a
C．the; /
D．the; a
答案
答案：C
考查冠词。第一空为固定短语：通过电话over the phone，第二空：写信write letters，letters前不需要加冠词，所以选C。