-- you got to know my telephone number? ---Through a friend of yours.A. How was itB. How w

问题补充：

-- you got to know my telephone number? ---Through a friend of yours.

A. How was it

B. How was it that

C. Was it how that

D. How did

答案：

A. How was it

(答案→)B. How was it that

C. Was it how that

D. How did

解析：这是一个强调句:问词+is (was) it + that所以选B.