The numbers in the key do not correspond （） those in the lessons.

单项选择题Send your questions to Mary Adams,（） is the director of Public Relations,for a quick reply.

A.who
B.which
C.whom
D.that

单项选择题Our Accounts Receivable Department has written to you three times;（）,we have had no response to our letters.

A.consequently
B.moreover
C.thus
D.however

单项选择题（）in the labor market,he has enrolled in a computer course.

A.Be competitive
B.Being more competitive
C.Being competitive
D.To be more competitive

单项选择题Information about the current foreign markets （） very important to our company.

A.is
B.was
C.are
D.were

单项选择题Of all the solutions to the disputes,the one proposed by Mr.Jackson is （）.

A.the most perfect
B.most perfect
C.the most nearly perfect
D.the perfects