意义段
参考答案：
是把两个意义相同的段合并到一起所形成的大段。它是段的群化，比之自然段更加完整。
Please come Christmas. [ ]
A. in
B. on
C. at
D. for
Written in a hurry, ____. How can it be satisfactory? [ ]
A. they find many mistakes in the report
B. lots of mistakes have been made in the report
C. there are plenty of mist akes in the report
D. the report is full of mistakes
