Question

【题目】I heard from my pen pal yesterday, but I haven't replied ____ her.
A.to
B.for
C.of
D.on

Answer 1

【答案】A
【解析】句意：我昨天收到我的笔友的来信，但是我还没有给她回信。reply to sb给某人回复。所以答案是A。