问题
选择题
It's clear that the thief was seen __ into the room that night.
A．went
B．go
C．going
D．to go
答案
答案：D
不用to 的不定式宾补在谓语变成被动语态时，一定要有to，所以选D。
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It's clear that the thief was seen __ into the room that night.
A．went
B．go
C．going
D．to go
答案：D
不用to 的不定式宾补在谓语变成被动语态时，一定要有to，所以选D。