--We’ll go to the Great Wall___ it is sunny tomorrow.--OK! Walking on the Great Wall must be great fun.
-— He was_______ tired_______ he fell asleep as soon as he lay down. -— Oh, we can go out and let him have a good rest.
—Excuse me, whose Japanese book is this? —It _______be Tom’s. In our class, only he is studying Japanese.
Vienna is ______old city ______the river Danube.
---Whose(谁的) is the ruler? ---It’s not_______. It’s ________.
Here ______two books and a pen on the desk.