My aunt arrived Guangzhou the morning of March 13.
I don't know if it ____ (rain) tomorrow. If it ______ (rain) tomorrow, I won’t climb the hills.
Joan and Mary haven't seen each other_____ they left school five years ago.
A talk on Chinese history _____ in the school hall next week.
—Is Xiao Li in the classroom?—No, he there. I saw him in the reading room just now.
They arrived ___ London___ a cold winter night.