—What's the boy doing?—He's _______ after a koala bear. [ ]A. runingB. runsC. to run D. ru

题目简介

—What's the boy doing?—He's _______ after a koala bear. [ ]A. runingB. runsC. to run D. ru

题目详情

—What's the boy doing?
—He's _______ after a koala bear.

A. runing
B. runs
C. to run
D. running
题型:单选题难度:中档来源:同步题

答案

D

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