— Look at the boy playing basketball on the ground. Is it George?— It ________ be him. He told me he would play basketball after class, but he’s not sure.
We often use computers to ______________.
Shanghai is ______the east of China, and Japan is _______the east of China.
—_____________ do you go back to your hometown ? —Twice a year
An ________ boy came to our class yesterday.
Some families raise cows, and _________ grow wheat.