She came to Shanghai _____ June,1998.She has been an English teacher ____ then .She often keeps in touch with me ____ e-
问题描述：
She came to Shanghai _____ June,1998.She has been an English teacher ____ then .She often keeps in touch with me ____ e-mail.Sometimes she goes abroad ______ air.
______ a smile on her face ,Miss Black came in.
答
in
since
by
by
with