.－How about paying a visit to Mr. Richardson, our former history teacher?
－Good idea. I will e-mail him today so he know to expect us.
A. shall; why
B. may; when
C. would; why
D. will; how
网友回答
A. shall; why
(答案→)B. may; when
C. would; why
D. will; how
解析：可联系答.案.网客服索取。