Paul doesn't have to be made .He always works hard. [ ] A. learn B. to learn C.
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![Paul doesn't have to be made .He always works hard. [ ] A. learn B. to learn C.](/pic/43_868433.jpg)
Paul doesn't have to be made _________.He always works hard.
[]A.learn
B.to learn
C.learned
D.learning
试题答案
答案:B
![Paul doesn't have to be made .He always works hard. [ ] A. learn B. to learn C.](/pic/43_868433.jpg)
Paul doesn't have to be made _________.He always works hard.
[]A.learn
B.to learn
C.learned
D.learning
答案:B