It was not until midnight ______ the parents finally found their lost kids. [ ]

Professor Liu ____ in New York forseven years, he has never regretted moving back to Shanghai, his hometown

I hope you will find this valley a beautiful place___youmay spend your weekend [ ]

There is little ________ in the fridge, let’s go and buy some.

We wouldn’t have called a taxi yesterday if Harold ______ us a ride home.[ ]