We confirm（）your order No.7891 dated May 10，1990.

[单选题]We are in receipt of your letter dated Jan 8, ____ we are pleased to learn that you want to order 100 tons of the subject goods.A . in whichB . from whichC . to whichD . at which

[单选题]May I take your order now? - _________A.No, I'm in trouble now.B.Yes, we ob

[单选题]We thank you for your letter of May 17 and the（）catalogue.A . sentB . enclosedC . givenD . presented

[单选题]Which of the following firing order may be used for a 6-cylinder engine? ( )A．1-2-3-4-5-6B．1-2-3-6-5-4C．1-5-3-6-2-4D．1-3-4-5-6-2

[单选题]Which of the following firing order may be used for an 6 cylinder engine?（）A . 1-2-3-4-5-6B . 1-2-3-6-5-4C . 1-5-3-6-2-4D . 1-3-4-5-6-2

[单选题]Pistons may be made in （） in order to keep the weight down for balancing purposes at high speed.A . cast ironB . forged steelC . stainless steelD . aluminum alloy

[单选题]We confirm ____ purchased 2,000 MP3 Players ____ you.A . have, toB . having, fromC . to have, fromD . have been to

[单选题]The total CIP value of your order comes（）$960 instead of $690，the difference（）$270.A . to，beB . at，beingC . to，beingD . at，tobe

[单选题]（）an order for 100 pieces or more，we allow a special discount of 5% for payment by L/C.A . AtB . InC . OnD . From

[单选题]Though a hot bath may not cure your headache, it may _____ the pain.A.belon