题目内容
用介词或副词填空
OK!The bullets are flying ________ the air.
The work must be finished ________ 9 o’clock.
Fill in the blanks with proper propositions or adverbs.
(用适当的介词或副词填空。)
I need to be in my office ________ nine o’clock ________ I usually get up ________ seven o’clock.
Shenzhou Ⅴ lifted ________ at 9 o’clock, on Oct.15th, 2003 in Jiuquan, Gansu Province.