---- He seldom goes abroad, does he?---- ________. Only once when he was young.
The boy keeps coughing,and the doctor tells the parents it still needs more time to _____ the reason.
_____ and guilty,Maggie put the book back on the shelf she had secretly placed in her schoolbag.
Peter didn’t do his homework and then he ___ a silly excuse to his teacher.
If I were in ____ position of the mayor,I wouldn’t allow _____ factory like this standing in the center of the town.
Profits in his company went up by 25% last year,and _____ so far this year though the financial situation is bad.