Judy,you look so tired.—Yes, I didn’t go to bed ____ 12 o’clock last night. [ ]

The World Bank has warned that rising food prices are pushing ________ people below poverty line (贫困线).

Here _________Amy! She looks very_________.

I’m going to Shanghai this afternoon. —________. Then how soon will you come back?

________ have you been studying at school?—-For more than four years．