题目内容
—________ has Mr. Smith lived here?—Since August 1st.
A. When B. How long C. How often D . Why
答案：B
提示：
提示：
| 对一段时间的提问要用how long。
|
练习册系列答案
相关题目
–How long has Mr. Liu taught English? --- _______ 1998.
| A. Since | B. In | C. For | D. At |