There are ________ bears on the earth because they have ____________ space on it.
You _______ go far if you need help with your homework.
---_______ he _______ from Beijing? --No, he _______.
The students hardly have any spare time for their hobbies, ________?
--- What do you think of the fish?--- It looks __________,but tastes__________.
— How often the Youth Olympic Games ? — Every four years, like the Summer Olympic Games.