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【单选题】
a book and two pens on the desk. [ ]A.
There's
B.
There are
C.
This is
D.
These
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【单选题】Do you think people will have robots ? [ ]
A.
at their homes
B.
in their home
C.
in their homes
D.
at homes
【单选题】How ale service robots at home different from those in factories?
A.
Theyperform. easier tasks．
B.
They can work in small spaces．
C.
Theyknow human goals better．
D.
They work closely with humans．
【简答题】How are service robots at home different from those in factories? [A] They perform. easier tasks. [B] They can work in small spaces. [C] They know human goals better. [D] They work closely with humans...
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