第一部分 英语知识运用 （共三大题，满分50分）
I．单项选择 （共15小题；每小题1分，满分15分）
( ) 1. It is said that _____ abacus was invented in the sixth century by the Chinese.
A. / B. a C. an D. the
( ) 2.---_______did you tell him about the news, Lisa?
--- By an e-mail.
A. How; sending B. How; send
C. What; sending D. What; send
( ) 3. ---I ’m sorry I____________ my exercise book at home.
---Don’t forget ____________it here tomorrow, please.
A. forgot; to take B. forgot; to bring C. left; to take D. left; to bring
