题目内容
The boy was walking down the street the UFO landed．
A．when B．after C．before D．until
试题答案
1、A
相关题目
The boy ____ down the street when the UFO landed
（着陆）.[ ]
|
A ．walk |
B ．was walking |
C ．walked |
D ．is walking |
题目内容
The boy was walking down the street the UFO landed．
A．when B．after C．before D．until
试题答案
1、A
The boy ____ down the street when the UFO landed
（着陆）.[ ]
|
A ．walk |
B ．was walking |
C ．walked |
D ．is walking |