单项选择题

Softwood comes from cone-bearing trees, which is ______ conifers(针叶树).

A．planted
B．called
C．watered
D．laid
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单项选择题
Without his glasses, he's ______ to smash into a tree.
A．liable
B．possible
C．unlikely
D．convenient
单项选择题
These plastic bags will ______ damage to environment.
A．make
B．do
C．lay
D．create
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