A. fluency
B. correctness
C. smooth
D. Communicative efficiency
第1题:
______ it rain tomorrow moring, the loading ______.
A.Should / will be postponed
B.If / shall be postponed
C.Should / would be postponed
D.If / has to be postponed
第2题:
第3题:
第4题:
第5题:
第6题: