2011的相反数是( ▲ )
-- Why do you feel so unhappy?--Bad luck . When I arrived at the airport, my flight __________.
()—The plane is leaving right now, but Jim hasn't arrived yet.- Well, he said he _____here on time.
---Could you please tell me how soon Xi Jinping ______ his first visit aboard?---In about three weeks.
I will tell my daughter as soon as she _________ back from work.
Sue told me that she ____________ shopping with her sister the next day.