He is a very hard-working student．—．As far as I know, he often burns the midnight oil．

Must the government of Philippines (菲律宾政府) say sorry to China？—Yes, they __________. Their behaviour has deeply hurt Chinese people.

How do you practice spoken English? —By conversations in pairs with our classmates.

That bag is too ________, who can help me carry it?

Is there any fruit in the big paper box, Daddy? ―. Let’s buy some on the way home.