While_______ us her experience in Africa, she couldn’t help crying.
-- What’s wrong with your pen?-- The ink ___________ come out.
The population of Africa is __________ so rapidly as to cause great concern of the whole world.
Living with a host family while studying abroad, in which there may be some other college students, __________ you the chance to learn more about the new culture.
Only after Li Qi focused on his strengths instead of his weakness ___________ himself from his inferiority complex(自卑感).
In Singapore, people who litter or dirty the street are most likely ___________.