单项选择题
A.well B.good C.nice D.perfect
I’ll thin down the（）for you right now.A.hammerB.pulleyC...
单项选择题I’ll thin down the（）for you right now.
A.hammer B.pulley C.paint D.bridge
The sailors spend most of their time in （）.A. scraping ...
单项选择题The sailors spend most of their time in （）.
A. scraping and painting B. the engine room C. looking out D. steering
Port-hand buoys are painted （） in color.A.greenB.redC.y...
单项选择题Port-hand buoys are painted （） in color.
A.green B.red C.yello D.white
