Itmaytakeyearstomakesuchrobots

It may take _________ years to make such robots .

A．hundred of

B．two hundreds

C．hundreds of

D．hundred

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---_______________. He is on a visit to Shanghai.

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B．has; Yes

C．is; Yes

D．is, No

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A．alone; alone

B．lonely; lonely

C．alone; lonely

D．lonely; alone

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---_____________. It has rained for so many days.

A．I hope not.

B．I am sure it will

C．I hope so

D．I’m afraid so

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A．arrived

B．reached

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