----Where is your sister?-----She my mom with cooking. A. is helpingB. helpingC. is helpD

发布时间：2020-08-21 13:35:19

----Where is your sister?  
-----She      my mom with cooking.
A. is helping
B. helping
C. is help
D. helps

网友回答

(答案→)A. is helping
B. helping
C. is help
D. helps
解析：考查时态。句意：---你的妹妹在哪儿？---她正在帮助我的妈妈做饭。故选A，用现在进行时。
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