I’ve found some pictures of the most interesting places ______ you can visit during the winter holidays.

_____ suddenly occurred to me _____ I had to attend an important meeting in Shanghai the next day.

These aren’t cards. They’re

Judging from his IQ and his present state of study，he be admitted to Ts-inghua University this year if nothing special happens．

It’s no use___________ over spilt milk.[ ]