Tina went into the kitchenher mother make dumplings.A. helpB. helpedC. helpingD. to help

问题补充：

Tina went into the kitchenher mother make dumplings.

A. help

B. helped

C. helping

D. to help

答案：

A. help

B. helped

C. helping

(答案→)D. to help

解析：句意：Tina走进厨房去帮她妈妈做饺子。to do 表示目的。根据题意，故选D。