单项选择题
Just give me five minutes to（）；I'm covered in oil.
A.clean myself throughB.clean outC.cleaningD.clean myself up
多项选择题 压力管道阀门的种类较多，按其作用分，有截止阀（）等。
单项选择题 We had a so long and（）political meeting that we felt（）.
单项选择题 It’s no use arguing with him and so we left him（）in the front room.
