The last tip you should bear in mind is ______when ____________.
A. smile, talking
B. to smile, talk
C. to smile, talking
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Don't pretend you ____________ when you haven't.
A. have understood
B. understand
C. understood
Hold the line, please, I am _______you now.
A. connect
B. connecting
C. connected
I think we've got a _____________line.
A. crossing
B. cross
C. crossed
We are quite happy ______the quality and design of the sample, but the_________is too expensive.
A. to, price
B. with, price
C. about, quotation