—What is the population of China? —China has ____population of l.3 billion.A.the;the B.a;a C.a;the D the;a
Over the last few years, the number of students participating in volunteer programs _______ sharply in our school.
No one is beyond the law, so it is _______ that the young talented university student was sentenced to death for murdering his roommate with poison.
_______ is part of children’s nature. They always insist on getting to the bottom of everything.
If you join our club, I will be with you every step, _______ you to speak English.
—Thank goodness! You came here at last. —You can hardly imagine what great trouble I have taken _______ your house.