单项选择题The passage tells us that the spider()
A. feeds grass and thistles to its young B. lives on blades of grass under the water C. lives in the grass on the banks of streams D. eats a meal once every five weeks
单项选择题3()
A.cause B.harm C.break D.disturb
单项选择题The phrase“be alert to”in the third paragraph may best be replaced by“()”.
A. look at B. pay attention to C. write down D. learn by heart
问答题不仅我,而且汤姆和玛丽都喜欢游泳。
单项选择题On roads painted with chevrons, drivers tend to feel that()
A. they should avoid speed-related hazards B. they are driving in the wrong lane C. they should slow down their speed D. they are coming near to the speed limit