—Isthisyourruler?—Yes, . A.thisis B.itis ...
问题详情：—Isthisyourruler?—Yes,. is is isn’t is【回答】B知识点：口语应用题型：选择题...
_______necessaryforyoutocomehereontime. A.Thisis ...
问题详情：_______necessaryforyoutocomehereontime. A.Thisis B.That's C.Youare D.It's【回答】D知识点：指示代词题型：选择题...