Recentlyithadbegunexperimentingwithahouseholdrobot.Itw...

問題詳情：

 Recently it had begun experimenting with a household robot. It was going to be      by Larry’s wife, Claire.

A. tested for   B. tested with     C. tested out    D. tested up

【回答】

C

知識點：詞組 短語

題型：選擇題