题目内容
(请给出正确答案)
[单选题]
Silk ____ by Chinese for thousands of years now.
A.has used
B.has been used
C.was used
D.is used
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B.has been used
C.was used
D.is used
A.with
B.for
C.on
D.under
A.too
B.also
C.either
D.neither
B.funeral wares
C.weapons
D.varied objects
A.this
B.that
C.it
D.he
A.how much
B.what
C.whatever
D.how expensive