Please extend this letter of credit,which expires( )January 28.
A. on B. in C. at D. for
(1)( ) Extend the expiry date.
(2)( ) Decrease the unit price.
(4)( ) Extend the period for shipment.
A.extend
B.increase
C.rise
D.add
We are ready to accept your offer () you extend the period of guarantee to 12 months.
A、unless
B、given
C、provided
D、lest
A.A.reiterate
B.B.repeat
C.C.revert
D.D.relate