______ I have your attention, please?
A. May
B. Do
C. Should
D. Must
查看答案
All professors are ______ to meet in the college conference room on Saturday, August 28, at 1:00 p.m..
A. requested
B. asked
C. required
D. told
________ please, everyone. I have an announcement to make.
Attention
B. Information
C. Something
D. Everybody
Be _______. There is something important I have to tell you.
A. quiet
B. quietly
C. silent
D. silently
The match will be __________ to next week.
A. put off
B. putted off
C. put away
D. putted away
微信支付 
支付宝支付