A、  B、  C、  A(A)针对不想去研讨会的提问，回答可能没有时间。故为正确答案。(B)在内容上前后文不搭配。另外，注意不要把workshop和shopping搞混。(C)workshop和work的发音相似，需要多加注

How did you know the meeting was over?
(A)No, he didn’t tell me.
(B)Actually, Mr. Hunter told me.
(C)Tuesday would be better for me.

Don’t you want to go to the sales workshop?
(A)I doubt I have time.
(B)Sure, I will go shopping with you.
(C)I enjoy working with him.