问题
选择题
| — Why on earth didn't you answer the phone? — I'm terribly sorry, but the doorbell ____, too. |
A. is ringing B. rang C. was ringing D. was about to ring |
答案
答案：C
搜题请搜索小程序“爱下问搜题”
| — Why on earth didn't you answer the phone? — I'm terribly sorry, but the doorbell ____, too. |
A. is ringing B. rang C. was ringing D. was about to ring |
答案：C
=3.1415，单位：cm） 