问题
选择题
You'd better _______ a doctor if you _______ well.[ ]
A. to see; isn't
B. see; feels
C. see; not feel
D. see; don't feel
答案
答案：D
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You'd better _______ a doctor if you _______ well.[ ]
A. to see; isn't
B. see; feels
C. see; not feel
D. see; don't feel
答案：D