摘要：7．The boy down the street when a UFO landed．
网址：http://m.1010jiajiao.com/timu_id_789288[举报]
The boy ____ down the street when the UFO landed
（着陆）.[ ]
|
A ．walk |
B ．was walking |
C ．walked |
D ．is walking |
网址：http://m.1010jiajiao.com/timu_id_789288[举报]
The boy ____ down the street when the UFO landed
（着陆）.[ ]
|
A ．walk |
B ．was walking |
C ．walked |
D ．is walking |