题目内容
Was it six years ago, when he came to China for the first time, _____ he began to learn Chinese?
A. where B. how C which D. that
Was it six years ago, when he came to China for the first time, ________ he began to learn Chinese?
A．where
B．how
C．which
D．that
A．when
where
how
which
that
A．where B．how C which D．that
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