What ______ you ______ when the telephone rang just now?
The snake lives ________ grassland.
There are _________200 animals in the zoo.
Lingling switches on the laptop________ opens a new document. She wants _______ write her homework.
On Sunday morning Jim has no lessons ________ he goes to school with Tom.
Let’s buy a birthday cake ________ his birthday present ________ the cake shop.