【单选题】
某工程需水泥360t，甲地可供100t，原价210元/t，乙地可供120t，原价220元/t，丙地可供140t，原价230元／t，则水泥的加权平均原价为【】
①
221.11元/t
②
220.00元/t
③
210.00元/t
④
230.00元/t
【单选题】
A: Thank you for inviting me to your birthday party. B: [填空].
①
Dont be so polite
②
You are so polite
③
You are quite welcome
④
Dont use thanks
【单选题】
The party had to be ______ because the host went down with a bad case of flu.
①
called in
②
called off
③
called on
④
called up
【单选题】
_______ of the twins was arrested, because I saw both at a party last night.
①
None
②
Both
③
Neither
④
D. All
【单选题】
As it turned out to be a small house party, we___ so formally.
①
need not have dressed up
②
must not have dressed up
③
did not need to dress up
④
must not dress up
【单选题】
We are going to have a singing party tonight. Would you like to join us?___________
①
I’m afraid not, because I have to go to an important meeting.
②
Of course not. I have no idea.
③
No, I can’t.
④
That’s all set.