【題目】Mr Jiang isn’t as busy as before because there no home robot to help him．

A. used to beB. may beC. used to haveD. may have

【答案】A

【解析】

句意：江先生不如以前忙，因?yàn)檫^(guò)去沒(méi)有家用機(jī)器人來(lái)幫助他。used to be過(guò)去是， may be可能是， used to have過(guò)去有，may have可能有。There be句型，表示存在，意為“有”。根據(jù)Mr Jiang isn’t as busy as before可知此處指的是過(guò)去，故用used to be。故選A。

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