after
                    - After earthquake, ________people were homeless.
 - After the Asian Games, ______ people came to Guangzhou for a visit during holidays.
 - I am looking after Tom today.He’s been in my house ______________ 8:00 this morning.
 - After Steven sent some e-mails ,he______ surfing the Internet.
 - After I ______ my homework, I went out to an aquarium.
 - After we pass the exam, we by having a party next week.
 - These young trees must ______.
 - After the earthquake, many people had to be_____in a stadium because most of their houses were badly damaged
 - After a knock at the door, the children heard his mother’s voice him.
 - After a series of food safety incidents, the government has ______ that not enough has been done to guarantee people green and healthy food.