tatschooltoday的精选

问题详情：ChenWeiisn’tatschooltoday________heistakingarobotcompetitioninShanghai.  A.so                            B.because                  C.before ...

问题详情：ChenWeiisn'tatschooltoday________heistakingarobotcompetitioninShanghai．（）A．soB．because   C．beforeD．if【回答】B知识点：连词题型：选择题...