___ had they reached the 30th floor ____ they realized that they had forgotten to take the key.
New Zealand has a population of about 3.8 million, ____ about fourteen percent are Mori.
The expert ____ health has discovered that five patients suffering the same disease are similar ____ age.
White graduated from ______ Leshan No. 1 Middle School in ____ 12th grade
I recognized the man _______ he came into the room.
--- Is there a primary school in your village now? --- No but there_________.