单项选择题
A．Due to
B．Taken by
C．Required by
D．According to
单项选择题 The average______for a 2-bedroom apartment in Boulder, Colorado is $900 a month.（）
单项选择题 The Metro Tech program offers a 6-month course leading to an ACAM ______in Basic Automobile Maintenance upon successful completion.（）
单项选择题 The European Commerce Authority is seeking______imports of foreign-made textiles and garments.（）