网址：http://m.1010jiajiao.com/timu3_id_3212293[举报]
. —Why didn’t you response to their greeting?
—Sorry. I ______they ______ to me.
A. don’t realize; are waving B. don’t realize; were waving
C. didn’t realize; were waving D. didn’t realize; are waving
查看习题详情和答案>>
---Why didn’t you response to their greeting?
---Sorry. I ______they ______ to me.
. —Why didn’t you response to their greeting?
—Sorry. I ______they ______ to me.
| A．don’t realize; are waving | B．don’t realize; were waving |
| C．didn’t realize; were waving | D．didn’t realize; are waving |