Question

【题目】— Look! The old man ______ a big box into the house.

— Let’s go and help him.

A. pulls B. pulled C. is pulling D. has pulled

Answer 1

【答案】C

【解析】试题分析：句意：—看!那位老人正拖着个大箱子进屋。—让我们去帮帮他。A. pulls一般现在时态；B. pulled一般过去时态；C. is pulling现在进行时态；D. has pulled现在完成时态，看得到的动作是正在发生的动作，用现在进行时态。故选C。