题型：单选题题类：常考题难易度：普通

____ they ____ a cow yesterday?

A、Did; milked B、Did; milk C、Do; milked D、Do; milk

举一反三

—No，we ________.

{#blank#}1{#/blank#} Sunday I {#blank#}2{#/blank#} a baseball game on the computer.

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