()you wish to know why we have placed no further orders with you recently, we are willing to raise a matter that caused us some trouble .
since
B. though
C. as
D. although

He ()her a beautiful hat on her next birthday.givesB. is going to giveC. gave

A.

点击查看答案&解析

A student will probably attend four or five courses during each()

A. seminar
B. semester
C. season

点击查看答案&解析