单项选择题
A. Put rat guard on the deck. B. Put rat guards on the moorings. C. Put rat guard under the moorings. D. Put rat guards under the moorings.
A. We must use all kinds of tools carefully and return it after using. B. We must use every tool carefully and return it after using. C. A+B D. We must use everything carefully and keep it after using.
A. The thinner can thin down paint. B. The thinner can clean. C. The thinner isn’t the paint. D. The thinner is the paint.