They _______ arrive at the station before 12 o’clock, but they don’t appear now.

Christina wasn’t saying anything, but the professor smiled at her _______she had done something very clever

It’s time that I ____ on night duty. I must be off now.-I’d rather you ____ at home on such a family reunion night. [ ]

Those whothemselves to pleasure and don’t work hard when they are young will surely feel regretful when they are old.[ ]

The Ministry of Public Security on Thursday urged police to carry out strict road safety checks in thewake of deadly accidents ahead of Spring Festival, when hundreds of millions ______ home.[ ]