单项选择题
A．enclose,to you B．enclose you,\ C．enclose,\ D．enclose,you
We are glad that in the past few years,（）joint efforts,...
填空题We are glad that in the past few years,（）joint efforts,have greatly promoted both business and friendship.
As to chemical products we are well connected（）the majo...
填空题As to chemical products we are well connected（）the major producers in America.
We trust the mentioned shipment will reach you（）sound c...
填空题We trust the mentioned shipment will reach you（）sound condition.
