I am sorry that you ___for such a long time,our but it will still be an hour or so before Tomcomes backA:had waited B:have been waiting C:waited D:wait
问题描述:
I am sorry that you ___for such a long time,our but it will still be an hour or so before Tom
comes back
A:had waited B:have been waiting C:waited D:wait
答
B:have been waiting