He is careless a student that he often some letters while writing. [ ] A. such;
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![He is careless a student that he often some letters while writing. [ ] A. such;](/pic/43_783182.jpg)
He is ________ careless a student that he often ________ some letters while writing.
[]A.such; leaves on
B.so; leaves off
C.so; leaves out
D.such; leaves out
试题答案
答案:C