Paul doesn't have to be made . He always works hard. [ ] A．learn B．to learn C．le
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Paul doesn't have to be made _____. He always works hard.
[]
A．learnB．to learn
C．learnD．learning
试题答案
答案：B
Paul doesn't have to be made _____. He always works hard.
[]
A．learnB．to learn
C．learnD．learning
答案：B