—I am afraid I can't finish the book within this week.—______.
#3965
A
Please go ahead
B
That's all right
C
Not at all
D
Take your time
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----–May I take this seat?----- ________. It is occupied.
#3551
A
Go ahead.
B
I am afraid not.
C
Yes, please.
D
Of course not.
—I’m sorry to have kept you waiting.—______, Bill.
#4131
A
You’re welcome
B
Go ahead
C
Don’t mention it
D
No problem
—Thank you for your help, Mr. Smith. I’ll hand in my paper tomorrow.—______. You may send it to my mailbox 3 days later.
#1594
A
No hurry
B
With pleasure
C
Come on
D
Nothing serious
--Do you know who invented the plane, Lucy?-- . I don’t know.
#23979
A
Excuse me
B
Beat me.
C
Believe me.
D
Sorry me