—Do you know how to start the machine?—________.I’m a green hand.
#3217
A
Not a clue
B
Exactly
C
By all means
D
Just so-so
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–Excuse  me, can I smoke here? --No, ______.
#24231
A
you must
B
you’d not better
C
you can
D
you’d better not
--Which play shall we go and see?  ----____________________.
#4176
A
I'm afraid we can't
B
I don't think it's interesting
C
Yes, I quite agree with you
D
I'll leave it to you