问题
选择题
—I’m sorry I went out for a smoke. I was very tired.
—There’s no ______ for this while you are at work.
A．cause
B．excuse
C．matter
D．choice
答案
答案：B
词义辨析。Cause指的是“原因”；excuse指的是“借口”；matter指的是“麻烦事”；choice指的是“选择”。根据句意：在上班时没有借口出去抽烟。