问题补充:
单选题I’mafraidIcan’ttakedownwhatyou’vejust___.A.referedB.referred toC.refered toD.referred
答案:
B解析这是主从复合句,what you’ve just… 为take down的宾语从句, have just +pp为现在完成时 ,refer动词的过去式是 referred.
时间:2019-02-26 18:45:01
单选题I’mafraidIcan’ttakedownwhatyou’vejust___.A.referedB.referred toC.refered toD.referred
B解析这是主从复合句,what you’ve just… 为take down的宾语从句, have just +pp为现在完成时 ,refer动词的过去式是 referred.