题目内容
10、I had not been reading for half an hour I heard steps outside.
A. while B. as C. when D. since
试题答案
10、C
相关题目
I had not been reading for half an hour I heard steps outside.
A. while B. as C. when D. since
查看习题详情和答案>>I had not been reading for half an hour _____ I heard the steps outside.
|
A．when |
B．while |
C．as |
D．since |
查看习题详情和答案>>