If a girl doesn’t know______ to wear or ______ to dress up, she can ask her best friend for help.

Kate looked so sad at the news that she failed in the exam that I didn’t know what to say to ________her. [ ]

They have held several meetings to _____ next year’s production plans.

The train leaves at 6:00 p.mSo I have to be at the station ____5:40p.m.at the latest

_____ the government’s call to develop the west, many college graduates volunteer to work in western part of China.