单项选择题
Can I borrow your some （）(开口销).
A. nuts B. through bolts C. split pins D. bolts
单项选择题 There are some （）(螺栓) in the toolbox.
单项选择题 Please （）(打开) the hatch NO. 2.
单项选择题 The varnish is used to paint the woodwork and deck （）(扶手).
