问题详情:
Chen Wei isn’t at school today ________ he is taking a robot competition in Shanghai.
A. so B. because C. before D. if
【回答】
B
知识点:连词
题型:选择题
问题详情:
Chen Wei isn’t at school today ________ he is taking a robot competition in Shanghai.
A. so B. because C. before D. if
【回答】
B
知识点:连词
题型:选择题