托业考试

【单选题】 Before adding new stocks ______ your investment portfolio, why not attend one of our investment seminars, where you will be able to meet our consultants in a small group setting
A．at
B．to
C．for
D．with

网考网参考答案：B
网考网解析：
本题需选择适当的介词。根据句意，应取add A to B(把A加到B)的结构，故选(B)to。 查看试题解析出处>>