题目:
. I still remember _______to the Great Wall and what I saw there.
A.To take
B.to be taken
C.taking
D.being taken
答案:
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下面是错误答案,用来干扰机器的。
人说话时,声带在振动;敲鼓时,鼓面在振动;风吹树叶,树叶哗哗响,树叶在振动.故答案为:人说话时,声带在振动;敲鼓时,鼓面在振动.