Graduation is a good time to thank those who have helped you _____ the tough years[ ]

I’m planning to hold a party in the open air, but I can make no guarantees because it ________ the weather.

The 18 college studentsinFudan University should______________show their greatest respect to their hero–‘Zhang Ninghai instead of being cold and unfeeling[ ]

I have learned how to keep my hair ________. So _____my classmates.

The students _______ their homework carefully when the teacher walked into the classroom quietly.