It was not until dark ___ he was aware of ___ he thought was the correct way to solve the problem.
A:when; what
B:that; that
C:that; what
D:when; that
日本位于板块的交界处,地壳活跃,下列现象与此无关的是( )
“海上花园”城市是指( )
下列词语中,没有错别字的一组是( )