—Hi, Li Xiaoxia. What a surprise! Dad you so early. He’s upstairs reading. I’ll just call him.
A. didn’t know; would e
B. doesn’t know; are ing
C. hadn’t known; were ing
D. hasn’t known; will e
网友回答
A. didn’t know; would e
(答案→)B. doesn’t know; are ing
C. hadn’t known; were ing
D. hasn’t known; will e
解析：可联系答.案.网客服索取。