1.I hope to ____you at your office at three o'clock today.

问题描述:

1.I hope to ____you at your office at three o'clock today.
a,call at b.call on a/b到底选哪个?为什么
2.The book has been revised and brought _______.
a.up to date b.into date c.out of date d.to date

b.call on sb.拜访某人
a.up to date