题目

由于地球自转产生的现象是：（ ） A．昼夜长短变化                  B．昼夜交替 C．四季更替                      D．五带的形成 答案：BThere ________a concert of Zhang Xueyou in Jinan on April 29th . A is going to have      B will have     C is going to be    D are going to be