They managed to until help arrived.
You should always________a qualified health care provider before taking any medication.
-Can you give me some advice about the design?-I think it should________to all ages and social groups.
____________ that you are chosen to be a volunteer at the London Olympic Games,what will you do?
________he couldn't understand was________more and more students showed interest in the computer games.
He is always saying,“If only Liu Xiang________to me that day!”