问题
选择题
Tom has been here ______ just one year, but his father has worked here ______ ten years ago.[ ]
A. since; for
B. since; since
C. for; since
D. for; /
答案
答案:C
Tom has been here ______ just one year, but his father has worked here ______ ten years ago.[ ]
A. since; for
B. since; since
C. for; since
D. for; /
答案:C