摘要：18．While watching television, . A．the doorbell rang B．the doorbell rings C．we heard the doorbell ring D．we heard the doorbell rings
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While watching television, __________.
A．the doorbell rang B．the doorbell rings
C．we heard the doorbell ring D．we heard the doorbell rings
查看习题详情和答案>>While watching television,________________________.
|
A．the doorbell rang |
B．the doorbell rings |
|
C．we heard the doorbell ring |
D．we heard the doorbell rings |
查看习题详情和答案>>
While watching television, __________.
A．the doorbell rang B．the doorbell rings
C．we heard the doorbell ring D．we heard the doorbell rings
查看习题详情和答案>>