It’s so surprising to hear from my school teacher again. ______, we last met more than twenty years ago.
The train leaves at 6:00 p.m.So I have to be at the station ___5:40 p.m. at the lastest.
--I’m going to the post office.---____you are there, can you get me some stamps?
The Whites are ___ holiday.But I don't know where they have gone___ their holiday.
--Was his father very strict with him when he was at school?---Yes.He had never praised him ___ he became one of the top students in his grade.
They began killing the native ___ they set foot on the island. Which of the following is NOT right?