– ______ the population of the world? – _______ about 6.5 billion.A. How many; They’reB. How much; It’sC. What’s; It’s
My tooth hurts. I’ll have no choice but ___________ tomorrow.
We all know that Changjiang River is longer than ___________ in America.
These photos__________ me____________ the old days when I was young.
I hope my advice will be __________ some __________ to you.
Sam is a little weak in English and he has _______________ what the teacher says in class.