–_______________ does a CRH train run? –It runs up to more than 300 km an hour.

You shouldn’t keep a pet _______________ you have enough time to care for it.

___________ the young girl ___________ her parents take regular exercise in order to keep fit.

—Can you guess if they ________tomorrow?
—They will come if they ________free, I think.

There’s no doubt _______ Emily will be the hostess (女主持) of the New Year’s party.

He realized his mistakes and took action to reduce the loss _______ it was too late.

______ he got ready to leave home, his parents came to his home.

Detective Lu thought that ________ Xie Yiming ________ Wang Gang were likely to kidnap Guan Fei, Guan Dawei’s son.

______ time goes by, China is getting stronger and stronger.

The art club is for members only. You can’t go in ____ you are a member.