The president visited the our school,           (陪同) by some officials.
Our school is             ( 坐落在)at the foot of a mountain.        
“Welcome            (登机)”said the air hostess.             
All the students in my class________(成功) in passing the final exam.  
He left his own country for some ___________(政治) reasons.         
Children show __________ (好奇) about everything.               
To be honest, it will take about three hours if everything goes______(顺利)
Mike , a foreign         (商人),came to our factory last week.      
Tomorrow will be my mother’s           (五十) birthday.           
The        (重大突破) in fighting cancer gives hope to cancer patients
all over the world.