what they need at present ____(be)science and technology?why

what they need at present ____(be)science and technology?why the answer is are
sorry the answer is IS.Who can tell me why?

jesus2 1年前已收到2个回答举报

北方为家幼苗

共回答了21个问题采纳率：95.2% 举报

what they need at present是主语从句,从句或某短语作主语时,谓语动词用单数形式
如：Doing exercises is good for our health.每天做早操对我们的健康有好处.

1年前

jiaohualin 幼苗

共回答了2649个问题举报

science and technology两样东西用are

1年前

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你能帮帮他们吗

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