问题补充:
单选题Aretheystilldoingtheexperiment?They esupposed______itbytheendoflastclass.A.finishB.finishedC.to finishD.to have finished
答案:
D
时间:2018-07-02 16:12:26
单选题Aretheystilldoingtheexperiment?They esupposed______itbytheendoflastclass.A.finishB.finishedC.to finishD.to have finished
D