Many social workers went to Ya’an to help clean water and food to local people to reduce their pain from the earthquake.
Running in the morning can make me ________ relaxed .
She looks very busy . I want to help her , but I don't know ___________ .
I think math is as __________ as English .
I believe my dream _________ true in the future .
---Will people live to be 300 years old ? --- ______________ .