When he was young,he ______ the old man.A.used to call on B.

When he was young,he ______ the old man.A.used to call on B.used to call
A.used to call on B.used to calling on C.was used to call on D.was used to calling on
要不得77 1年前 已收到2个回答 举报

YY_802 幼苗

共回答了17个问题采纳率:82.4% 举报

A 当他年轻的时候,经常拜访老人.use to do sth.过去常干某事,现在不做了.
use to doing sth.习惯做某事

1年前

3

Aargau 幼苗

共回答了17个问题 举报

A. used to call on
used to 过去常常
call on 拜访

1年前

1
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