1. em____ 2. s____p 3. p_st___d 4. le_____
二、单项选择。
( ) 1. An email is ________.
A. slow B. fast C. busy
( ) 2. It's nine o'clock. I should go ________ home.
A. back B. in C. on
( ) 3. —Let's go shopping!
—__________
A. Excuse me! B. You are welcome!
C. Good idea!
( ) 4. You can _______ many things on Wangfujing Street.
A. send B. buy C. go
三、选择合适的一项完成句子。
1. ________ doesn't need stamps.
2. A letter is ________.
3. Shanghai is a __________ city.
4. I want to __________ an email to my mum.
5. They will go home ________.