單項(xiàng)選擇題More than 30 years ago, ()that the region was rich in natural resources。

A.people did little know
B.people little know
C.little did know
D.little did people know


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1.單項(xiàng)選擇題She walked into the room carefully because she () waking her husband up。

A.was keen on
B.was afraid of
C.was eager to
D.was careful with