Who ______ the fight against the H1N1 flu ______ it not been for the Chinese scientists’ great efforts?
We should never ever forget about the war in Iraq and the sufferings(苦难) ______caused to the people there.
In China, ______car is getting to be ______popular means of transport.
---Would you mind if I record your lecture? ---______. Go ahead.
Russia lies______ the north of China.
As you can see, the number of the students ______rising these days.