Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.

Mr. Li isn’t here. He______Shanghai on business. He will be back next Monday.

You can call me_____0512-5123467 or email me_____lily@126.com. [ ]

I don’t know_____________makes her afraid of having her business discussed.

Could you please come to the museum with me this afternoon?—Sorry, I ______ . I have to take a piano lesson at 2 pm.