— But for the bird flu ( 禽流感 ) in Vietnam in the summer of 2004,I ______ you to go to Vietnam for sightseeing. — Really? What a pity!
It took a long time for the connection between body temperature and illness________.
It was just a ________remark - I wasn’t really serious.
This is a very special flower and it can ________a strong sweet perfume at night.
The engineer has spent one year working in the US and discovered how things ________overseas.
In the 21st century, all nations must take their ________of responsibility for the global safety.