问题补充:
I want to ring him___to know the reason why he rang___while I was speaking yesterday.
A. up; off
B. back; up
C. up; down
D. on; off
答案:
(答案→)A. up; off
B. back; up
C. up; down
D. on; off
解析:ring sb. up意为“给某人打电话”;ring off的意思是“挂断电话”。
时间:2020-02-13 16:19:48
I want to ring him___to know the reason why he rang___while I was speaking yesterday.
A. up; off
B. back; up
C. up; down
D. on; off
(答案→)A. up; off
B. back; up
C. up; down
D. on; off
解析:ring sb. up意为“给某人打电话”;ring off的意思是“挂断电话”。