题干
—I haven't worked the problem out yet. What am I supposed to do?
—Try again! It’s only difficult.
A：a lot
B：a bit
C：too much
D：too many
答案(点此获取答案解析）
B
—I haven't worked the problem out yet. What am I supposed to do?
—Try again! It’s only difficult.
A：a lot
B：a bit
C：too much
D：too many
