.--- Where did he leave his car key? ---
题型:选择题
问题:
.--- Where did he leave his car key?
--- It was in the lab he made the experiment.
A.where
B.that
C.what
D.there
.--- Where did he leave his car key?
--- It was in the lab he made the experiment.
A.where
B.that
C.what
D.there