Sorry,we don’t have the coat________you need.
英语老师指着“Ff”问道:What’s this? 你应答:_______.
-_______students are there in your class, Mr Li? -Fifty.
Daming and Lingling are in .
--- This is Mike Brown.--- Hello,_________.
–Are they ______books? --No, they aren't. They're ______ books.