单项选择题
Under no circumstance （）to tell lies to parents．
A.children are allowed B.are children allowed C.children will allow D.will children allow
单项选择题 There has been a great increase in retail sales , （）﹖
单项选择题 The professor said he could talk on （）interested the audience．
单项选择题 You （）him so closely; you should have kept your distance．
