. You had better get a doctor your bad tooth.A. pull outB. to pull outC. pulled outD. pul

问题补充：

. You had better get a doctor your bad tooth.

A. pull out

B. to pull out

C. pulled out

D. pulling out

答案：

A. pull out

(答案→)B. to pull out

C. pulled out

D. pulling out

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