His sister has become a doctor, ______ is what he wants to be.
The survey shows that ______ of the population in the country ______ adults.
. The workers do nothing but _______ tea and talk to each other.
Every year, a great many visitors come to visit the temple ______ the 12th century, ______ has brought a large income.
. She makes _______ effort to learn maths and she has made _______ great progress in it.
.I shall never forget the day _______ Shen Zhou V was launched, _______ has a great effect on my life.