that they may eventually reduce the amount of labor needed on construction sites by 90 percent．
#69828
A
Such construction robots are clever
B
So clever the construction robots are
C
Such clever construction robots are
D
So clever are the construction robots
推荐题目
He is a strict but kind-hearted father, the children respect but are afraid of.
#68595
A
/
B
that
C
one whom
D
for whom
Living in the mountain area has its problems , _____ obtaining water is a big problem.
#67011
A
of which
B
for what
C
as
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whose
We live in a society _______ there is a great deal of debate about competition.
#68497
A
which
B
where
C
when
D
that
He met Rachel at her college graduation ceremony in 2008, ________ he was later to marry.
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A
which
B
when
C
where
D
whom
Alice received an invitation from her boss,__________came as a surprise.
#71835
A
it
B
that
C
which
D
he