While Alan was writing a letter, the children outside( )
play
were playing
will play
Guangdong is ____ the south of China .
I read an article ________ a young writer ________ the UK last week.
---There are some pictures ________ the wall. What ________ can you see? ---I can see two windows ________ the wall.
Look! There are ________ birds ______the tree.
He arrived ________ Nanjing _________ the evening of July 8th.